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46 vulnerabilities found for sssd by fedoraproject
CVE-2026-68743 (GCVE-0-2026-68743)
Vulnerability from nvd – Published: 2026-08-04 18:37 – Updated: 2026-08-04 19:10
VLAI
EPSS
VEX
Title
Sssd: sssd: pam responder out-of-bounds read via unchecked auth_token_length in protocol v1
Summary
A flaw was found in SSSD. The extract_authtok_v1() function in the PAM responder does not validate the auth_token_length field against the remaining buffer size before processing. A local attacker can exploit this via a crafted protocol v1 request to the PAM responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 19:03 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-68743 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509760 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-03 07:34
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CVE-2026-68744 (GCVE-0-2026-68744)
Vulnerability from nvd – Published: 2026-08-04 05:28 – Updated: 2026-08-04 15:03
VLAI
EPSS
VEX
Title
Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply
Summary
A flaw was found in SSSD. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 14:19 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-68744 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509761 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-03 07:39
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CVE-2026-68742 (GCVE-0-2026-68742)
Vulnerability from nvd – Published: 2026-08-03 09:53 – Updated: 2026-08-03 20:00
VLAI
EPSS
VEX
Title
Sssd: sssd: nss responder out-of-bounds read via unchecked addrlen in gethostbyaddr
Summary
A flaw was found in SSSD. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 20:00 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-68742 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509762 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-03 07:36
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CVE-2026-12610 (GCVE-0-2026-12610)
Vulnerability from nvd – Published: 2026-06-30 08:27 – Updated: 2026-06-30 15:20
VLAI
EPSS
VEX
Title
Sssd: use-after-free crash in sssd' 'sssd_pam' process
Summary
A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 12:44 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-12610 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2490288 | issue-trackingx_refsource_REDHAT |
| https://github.com/SSSD/sssd/issues/8796 |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-06-09 12:00
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CVE-2026-6245 (GCVE-0-2026-6245)
Vulnerability from nvd – Published: 2026-04-15 18:35 – Updated: 2026-04-15 20:01
VLAI
EPSS
VEX
Title
Sssd: out-of-bounds read in the sssd
Summary
A flaw was found in the System Security Services Daemon (SSSD). The pam_passkey_child_read_data() function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an out-of-bounds read when processed by functions like snprintf(). A local attacker could potentially trigger this vulnerability by initiating a crafted passkey authentication request, causing the SSSD PAM responder to crash, resulting in a local Denial of Service (DoS).
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 19:36 UTC
CWE
- CWE-805 - Buffer Access with Incorrect Length Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-6245 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2457954 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-04-15 18:20
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CVE-2023-3758 (GCVE-0-2023-3758)
Vulnerability from nvd – Published: 2024-04-18 19:06 – Updated: 2025-11-06 22:57
VLAI
EPSS
VEX
Title
Sssd: race condition during authorization leads to gpo policies functioning inconsistently
Summary
A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This may lead to improper authorization issues, granting or denying access to resources inappropriately.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-06 16:31 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
13 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:1919 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1920 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1921 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1922 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:2571 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:3270 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-3758 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2223762 | issue-trackingx_refsource_REDHAT |
| https://github.com/SSSD/sssd/pull/7302 | |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0 , < 2.9.5
(semver)
|
|||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.9.4-3.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support |
Unaffected:
0:2.6.2-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support |
Unaffected:
0:2.8.2-4.el8_8.2 , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.8::crb cpe:/o:redhat:rhel_eus:8.8::baseos cpe:/a:redhat:rhel_eus:8.8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.9.4-6.el9_4 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::crb cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support |
Unaffected:
0:2.6.2-4.el9_0.3 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.0::crb cpe:/o:redhat:rhel_eus:9.0::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support |
Unaffected:
0:2.8.2-5.el9_2.4 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.2::appstream cpe:/o:redhat:rhel_eus:9.2::baseos cpe:/a:redhat:rhel_eus:9.2::crb |
|
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 |
Unaffected:
0:2.6.2-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
Date Public
2024-04-16 00:00
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CVE-2022-4254 (GCVE-0-2022-4254)
Vulnerability from nvd – Published: 2023-02-01 00:00 – Updated: 2025-03-27 14:42
VLAI
EPSS
VEX
Summary
sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-27 14:42 UTC
CWE
Assigner
References
Impacted products
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CVE-2021-3621 (GCVE-0-2021-3621)
Vulnerability from nvd – Published: 2021-12-23 00:00 – Updated: 2025-11-03 20:33
VLAI
EPSS
VEX
Summary
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity
No CVSS data available.
CWE
Assigner
References
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CVE-2012-3462 (GCVE-0-2012-3462)
Vulnerability from nvd – Published: 2019-12-26 20:14 – Updated: 2024-08-06 20:05
VLAI
EPSS
VEX
Summary
A flaw was found in SSSD version 1.9.0. The SSSD's access-provider logic causes the result of the HBAC rule processing to be ignored in the event that the access-provider is also handling the setup of the user's SELinux user context.
Severity
No CVSS data available.
CWE
- Other
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_MISC |
| https://access.redhat.com/security/cve/cve-2012-3462 | x_refsource_MISC |
| https://pagure.io/SSSD/sssd/issue/1470 | x_refsource_MISC |
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CVE-2018-16838 (GCVE-0-2018-16838)
Vulnerability from nvd – Published: 2019-03-25 17:41 – Updated: 2025-02-13 16:27
VLAI
EPSS
VEX
Summary
A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.
Severity
5.4 (Medium)
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://access.redhat.com/errata/RHSA-2019:2177 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2019:2437 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2019:3651 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2023… |
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CVE-2019-3811 (GCVE-0-2019-3811)
Vulnerability from nvd – Published: 2019-01-15 15:00 – Updated: 2025-02-13 16:27
VLAI
EPSS
VEX
Summary
A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.
Severity
4.1 (Medium)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://lists.debian.org/debian-lts-announce/2019… | mailing-listx_refsource_MLIST |
| http://www.securityfocus.com/bid/106644 | vdb-entryx_refsource_BID |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://access.redhat.com/errata/RHSA-2019:2177 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2023… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The sssd Project | sssd |
Affected:
2.1
|
Date Public
2018-12-04 00:00
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CVE-2018-16883 (GCVE-0-2018-16883)
Vulnerability from nvd – Published: 2018-12-19 14:00 – Updated: 2024-08-05 10:32
VLAI
EPSS
VEX
Summary
sssd versions from 1.13.0 to before 2.0.0 did not properly restrict access to the infopipe according to the "allowed_uids" configuration parameter. If sensitive information were stored in the user directory, this could be inadvertently disclosed to local attackers.
Severity
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/106264 | vdb-entryx_refsource_BID |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
Date Public
2018-12-19 00:00
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CVE-2017-12173 (GCVE-0-2017-12173)
Vulnerability from nvd – Published: 2018-07-27 16:00 – Updated: 2024-08-05 18:28
VLAI
EPSS
VEX
Summary
It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
Severity
4.3 (Medium)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2017:3379 | vendor-advisoryx_refsource_REDHAT |
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| https://access.redhat.com/errata/RHSA-2018:1877 | vendor-advisoryx_refsource_REDHAT |
Date Public
2017-10-03 00:00
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CVE-2018-10852 (GCVE-0-2018-10852)
Vulnerability from nvd – Published: 2018-06-26 14:00 – Updated: 2024-08-05 07:46
VLAI
EPSS
VEX
Summary
The UNIX pipe which sudo uses to contact SSSD and read the available sudo rules from SSSD has too wide permissions, which means that anyone who can send a message using the same raw protocol that sudo and SSSD use can read the sudo rules available for any user. This affects versions of SSSD before 1.16.3.
Severity
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://lists.debian.org/debian-lts-announce/2018… | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2018:3158 | vendor-advisoryx_refsource_REDHAT |
| http://www.securityfocus.com/bid/104547 | vdb-entryx_refsource_BID |
Date Public
2018-06-07 00:00
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CVE-2015-5292 (GCVE-0-2015-5292)
Vulnerability from nvd – Published: 2015-10-29 16:00 – Updated: 2024-08-06 06:41
VLAI
EPSS
VEX
Summary
Memory leak in the Privilege Attribute Certificate (PAC) responder plugin (sssd_pac_plugin.so) in System Security Services Daemon (SSSD) 1.10 before 1.13.1 allows remote authenticated users to cause a denial of service (memory consumption) via a large number of logins that trigger parsing of PAC blobs during Kerberos authentication.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
13 references
| URL | Tags |
|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-2355.html | vendor-advisoryx_refsource_REDHAT |
| http://rhn.redhat.com/errata/RHSA-2015-2019.html | vendor-advisoryx_refsource_REDHAT |
| http://permalink.gmane.org/gmane.linux.redhat.sss… | mailing-listx_refsource_MLIST |
| http://www.securitytracker.com/id/1034038 | vdb-entryx_refsource_SECTRACK |
| http://www.securityfocus.com/bid/77529 | vdb-entryx_refsource_BID |
| http://www.oracle.com/technetwork/topics/security… | x_refsource_CONFIRM |
| https://fedorahosted.org/sssd/attachment/ticket/2… | x_refsource_CONFIRM |
| http://lists.fedoraproject.org/pipermail/package-… | vendor-advisoryx_refsource_FEDORA |
| http://lists.fedoraproject.org/pipermail/package-… | vendor-advisoryx_refsource_FEDORA |
| https://bugzilla.redhat.com/show_bug.cgi?id=1267580 | x_refsource_CONFIRM |
| http://lists.fedoraproject.org/pipermail/package-… | vendor-advisoryx_refsource_FEDORA |
| https://fedorahosted.org/sssd/ticket/2803 | x_refsource_CONFIRM |
| https://fedorahosted.org/sssd/wiki/Releases/Notes… | x_refsource_CONFIRM |
Date Public
2015-10-11 00:00
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CVE-2026-68743 (GCVE-0-2026-68743)
Vulnerability from cvelistv5 – Published: 2026-08-04 18:37 – Updated: 2026-08-04 19:10
VLAI
EPSS
VEX
Title
Sssd: sssd: pam responder out-of-bounds read via unchecked auth_token_length in protocol v1
Summary
A flaw was found in SSSD. The extract_authtok_v1() function in the PAM responder does not validate the auth_token_length field against the remaining buffer size before processing. A local attacker can exploit this via a crafted protocol v1 request to the PAM responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 19:03 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-68743 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509760 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-03 07:34
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CVE-2026-68744 (GCVE-0-2026-68744)
Vulnerability from cvelistv5 – Published: 2026-08-04 05:28 – Updated: 2026-08-04 15:03
VLAI
EPSS
VEX
Title
Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply
Summary
A flaw was found in SSSD. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 14:19 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-68744 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509761 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-03 07:39
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CVE-2026-68742 (GCVE-0-2026-68742)
Vulnerability from cvelistv5 – Published: 2026-08-03 09:53 – Updated: 2026-08-03 20:00
VLAI
EPSS
VEX
Title
Sssd: sssd: nss responder out-of-bounds read via unchecked addrlen in gethostbyaddr
Summary
A flaw was found in SSSD. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 20:00 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-68742 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509762 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-03 07:36
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CVE-2026-12610 (GCVE-0-2026-12610)
Vulnerability from cvelistv5 – Published: 2026-06-30 08:27 – Updated: 2026-06-30 15:20
VLAI
EPSS
VEX
Title
Sssd: use-after-free crash in sssd' 'sssd_pam' process
Summary
A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 12:44 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-12610 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2490288 | issue-trackingx_refsource_REDHAT |
| https://github.com/SSSD/sssd/issues/8796 |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-06-09 12:00
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CVE-2026-6245 (GCVE-0-2026-6245)
Vulnerability from cvelistv5 – Published: 2026-04-15 18:35 – Updated: 2026-04-15 20:01
VLAI
EPSS
VEX
Title
Sssd: out-of-bounds read in the sssd
Summary
A flaw was found in the System Security Services Daemon (SSSD). The pam_passkey_child_read_data() function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an out-of-bounds read when processed by functions like snprintf(). A local attacker could potentially trigger this vulnerability by initiating a crafted passkey authentication request, causing the SSSD PAM responder to crash, resulting in a local Denial of Service (DoS).
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 19:36 UTC
CWE
- CWE-805 - Buffer Access with Incorrect Length Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-6245 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2457954 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-04-15 18:20
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CVE-2023-3758 (GCVE-0-2023-3758)
Vulnerability from cvelistv5 – Published: 2024-04-18 19:06 – Updated: 2025-11-06 22:57
VLAI
EPSS
VEX
Title
Sssd: race condition during authorization leads to gpo policies functioning inconsistently
Summary
A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This may lead to improper authorization issues, granting or denying access to resources inappropriately.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-06 16:31 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
13 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:1919 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1920 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1921 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1922 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:2571 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:3270 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-3758 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2223762 | issue-trackingx_refsource_REDHAT |
| https://github.com/SSSD/sssd/pull/7302 | |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0 , < 2.9.5
(semver)
|
|||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.9.4-3.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support |
Unaffected:
0:2.6.2-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support |
Unaffected:
0:2.8.2-4.el8_8.2 , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.8::crb cpe:/o:redhat:rhel_eus:8.8::baseos cpe:/a:redhat:rhel_eus:8.8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.9.4-6.el9_4 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::crb cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support |
Unaffected:
0:2.6.2-4.el9_0.3 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.0::crb cpe:/o:redhat:rhel_eus:9.0::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support |
Unaffected:
0:2.8.2-5.el9_2.4 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.2::appstream cpe:/o:redhat:rhel_eus:9.2::baseos cpe:/a:redhat:rhel_eus:9.2::crb |
|
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 |
Unaffected:
0:2.6.2-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhev_hypervisor:4.4::el8 cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
Date Public
2024-04-16 00:00
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CVE-2022-4254 (GCVE-0-2022-4254)
Vulnerability from cvelistv5 – Published: 2023-02-01 00:00 – Updated: 2025-03-27 14:42
VLAI
EPSS
VEX
Summary
sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-27 14:42 UTC
CWE
Assigner
References
Impacted products
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CVE-2021-3621 (GCVE-0-2021-3621)
Vulnerability from cvelistv5 – Published: 2021-12-23 00:00 – Updated: 2025-11-03 20:33
VLAI
EPSS
VEX
Summary
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity
No CVSS data available.
CWE
Assigner
References
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CVE-2012-3462 (GCVE-0-2012-3462)
Vulnerability from cvelistv5 – Published: 2019-12-26 20:14 – Updated: 2024-08-06 20:05
VLAI
EPSS
VEX
Summary
A flaw was found in SSSD version 1.9.0. The SSSD's access-provider logic causes the result of the HBAC rule processing to be ignored in the event that the access-provider is also handling the setup of the user's SELinux user context.
Severity
No CVSS data available.
CWE
- Other
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_MISC |
| https://access.redhat.com/security/cve/cve-2012-3462 | x_refsource_MISC |
| https://pagure.io/SSSD/sssd/issue/1470 | x_refsource_MISC |
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CVE-2018-16838 (GCVE-0-2018-16838)
Vulnerability from cvelistv5 – Published: 2019-03-25 17:41 – Updated: 2025-02-13 16:27
VLAI
EPSS
VEX
Summary
A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.
Severity
5.4 (Medium)
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://access.redhat.com/errata/RHSA-2019:2177 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2019:2437 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2019:3651 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2023… |
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CVE-2019-3811 (GCVE-0-2019-3811)
Vulnerability from cvelistv5 – Published: 2019-01-15 15:00 – Updated: 2025-02-13 16:27
VLAI
EPSS
VEX
Summary
A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.
Severity
4.1 (Medium)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://lists.debian.org/debian-lts-announce/2019… | mailing-listx_refsource_MLIST |
| http://www.securityfocus.com/bid/106644 | vdb-entryx_refsource_BID |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://access.redhat.com/errata/RHSA-2019:2177 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2023… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The sssd Project | sssd |
Affected:
2.1
|
Date Public
2018-12-04 00:00
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CVE-2018-16883 (GCVE-0-2018-16883)
Vulnerability from cvelistv5 – Published: 2018-12-19 14:00 – Updated: 2024-08-05 10:32
VLAI
EPSS
VEX
Summary
sssd versions from 1.13.0 to before 2.0.0 did not properly restrict access to the infopipe according to the "allowed_uids" configuration parameter. If sensitive information were stored in the user directory, this could be inadvertently disclosed to local attackers.
Severity
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/106264 | vdb-entryx_refsource_BID |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
Date Public
2018-12-19 00:00
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CVE-2017-12173 (GCVE-0-2017-12173)
Vulnerability from cvelistv5 – Published: 2018-07-27 16:00 – Updated: 2024-08-05 18:28
VLAI
EPSS
VEX
Summary
It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
Severity
4.3 (Medium)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2017:3379 | vendor-advisoryx_refsource_REDHAT |
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Date Public
2017-10-03 00:00
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CVE-2018-10852 (GCVE-0-2018-10852)
Vulnerability from cvelistv5 – Published: 2018-06-26 14:00 – Updated: 2024-08-05 07:46
VLAI
EPSS
VEX
Summary
The UNIX pipe which sudo uses to contact SSSD and read the available sudo rules from SSSD has too wide permissions, which means that anyone who can send a message using the same raw protocol that sudo and SSSD use can read the sudo rules available for any user. This affects versions of SSSD before 1.16.3.
Severity
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://lists.debian.org/debian-lts-announce/2018… | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2018:3158 | vendor-advisoryx_refsource_REDHAT |
| http://www.securityfocus.com/bid/104547 | vdb-entryx_refsource_BID |
Date Public
2018-06-07 00:00
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CVE-2015-5292 (GCVE-0-2015-5292)
Vulnerability from cvelistv5 – Published: 2015-10-29 16:00 – Updated: 2024-08-06 06:41
VLAI
EPSS
VEX
Summary
Memory leak in the Privilege Attribute Certificate (PAC) responder plugin (sssd_pac_plugin.so) in System Security Services Daemon (SSSD) 1.10 before 1.13.1 allows remote authenticated users to cause a denial of service (memory consumption) via a large number of logins that trigger parsing of PAC blobs during Kerberos authentication.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
13 references
| URL | Tags |
|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-2355.html | vendor-advisoryx_refsource_REDHAT |
| http://rhn.redhat.com/errata/RHSA-2015-2019.html | vendor-advisoryx_refsource_REDHAT |
| http://permalink.gmane.org/gmane.linux.redhat.sss… | mailing-listx_refsource_MLIST |
| http://www.securitytracker.com/id/1034038 | vdb-entryx_refsource_SECTRACK |
| http://www.securityfocus.com/bid/77529 | vdb-entryx_refsource_BID |
| http://www.oracle.com/technetwork/topics/security… | x_refsource_CONFIRM |
| https://fedorahosted.org/sssd/attachment/ticket/2… | x_refsource_CONFIRM |
| http://lists.fedoraproject.org/pipermail/package-… | vendor-advisoryx_refsource_FEDORA |
| http://lists.fedoraproject.org/pipermail/package-… | vendor-advisoryx_refsource_FEDORA |
| https://bugzilla.redhat.com/show_bug.cgi?id=1267580 | x_refsource_CONFIRM |
| http://lists.fedoraproject.org/pipermail/package-… | vendor-advisoryx_refsource_FEDORA |
| https://fedorahosted.org/sssd/ticket/2803 | x_refsource_CONFIRM |
| https://fedorahosted.org/sssd/wiki/Releases/Notes… | x_refsource_CONFIRM |
Date Public
2015-10-11 00:00
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{
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