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alsa-2023:3097
Vulnerability from osv_almalinux
Published
2023-05-16 00:00
Modified
2023-05-19 22:00
Summary
Moderate: gssntlmssp security update
Details
The gssntlmssp is a GSSAPI NTLM mechanism that allows to perform NTLM authentication in GSSAPI programs.
Security Fix(es):
- gssntlmssp: multiple out-of-bounds read when decoding NTLM fields (CVE-2023-25563)
- gssntlmssp: memory corruption when decoding UTF16 strings (CVE-2023-25564)
- gssntlmssp: incorrect free when decoding target information (CVE-2023-25565)
- gssntlmssp: memory leak when parsing usernames (CVE-2023-25566)
- gssntlmssp: out-of-bounds read when decoding target information (CVE-2023-25567)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "gssntlmssp"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.0-1.el8_8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "The gssntlmssp is a GSSAPI NTLM mechanism that allows to perform NTLM authentication in GSSAPI programs.\n\nSecurity Fix(es):\n\n* gssntlmssp: multiple out-of-bounds read when decoding NTLM fields (CVE-2023-25563)\n* gssntlmssp: memory corruption when decoding UTF16 strings (CVE-2023-25564)\n* gssntlmssp: incorrect free when decoding target information (CVE-2023-25565)\n* gssntlmssp: memory leak when parsing usernames (CVE-2023-25566)\n* gssntlmssp: out-of-bounds read when decoding target information (CVE-2023-25567)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
"id": "ALSA-2023:3097",
"modified": "2023-05-19T22:00:11Z",
"published": "2023-05-16T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2023:3097"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-25563"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-25564"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-25565"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-25566"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-25567"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2172019"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2172020"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2172021"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2172022"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2172023"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2023-3097.html"
}
],
"related": [
"CVE-2023-25563",
"CVE-2023-25564",
"CVE-2023-25565",
"CVE-2023-25566",
"CVE-2023-25567"
],
"summary": "Moderate: gssntlmssp security update"
}
CVE-2023-25567 (GCVE-0-2023-25567)
Vulnerability from cvelistv5 – Published: 2023-02-14 17:35 – Updated: 2025-03-10 21:11
VLAI?
EPSS
Title
GSS-NTLMSSP vulnerable to out-of-bounds read when decoding target information
Summary
GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0.
Severity ?
7.5 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| gssapi | gss-ntlmssp |
Affected:
< 1.2.0
|
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CVE-2023-25565 (GCVE-0-2023-25565)
Vulnerability from cvelistv5 – Published: 2023-02-14 17:35 – Updated: 2025-03-10 21:11
VLAI?
EPSS
Title
GSS-NTLMSSP vulnerable to incorrect free when decoding target information
Summary
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.
Severity ?
7.5 (High)
CWE
- CWE-590 - Free of Memory not on the Heap
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| gssapi | gss-ntlmssp |
Affected:
< 1.2.0
|
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CVE-2023-25564 (GCVE-0-2023-25564)
Vulnerability from cvelistv5 – Published: 2023-02-14 17:35 – Updated: 2025-03-10 21:12
VLAI?
EPSS
Title
GSS-NTLMSSP vulnerable to memory corruption when decoding UTF16 strings
Summary
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This issue is fixed in version 1.2.0.
Severity ?
6.5 (Medium)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| gssapi | gss-ntlmssp |
Affected:
< 1.2.0
|
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CVE-2023-25566 (GCVE-0-2023-25566)
Vulnerability from cvelistv5 – Published: 2023-02-14 17:35 – Updated: 2025-03-10 21:11
VLAI?
EPSS
Title
GSS-NTLMSSP vulnerable to memory leak when parsing usernames
Summary
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0.
Severity ?
7.5 (High)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| gssapi | gss-ntlmssp |
Affected:
< 1.2.0
|
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CVE-2023-25563 (GCVE-0-2023-25563)
Vulnerability from cvelistv5 – Published: 2023-02-14 17:35 – Updated: 2025-03-10 21:12
VLAI?
EPSS
Title
GSS-NTLMSSP vulnerable to multiple out-of-bounds reads when decoding NTLM fields
Summary
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, multiple out-of-bounds reads when decoding NTLM fields can trigger a denial of service. A 32-bit integer overflow condition can lead to incorrect checks of consistency of length of internal buffers. Although most applications will error out before accepting a singe input buffer of 4GB in length this could theoretically happen. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point if the application allows tokens greater than 4GB in length. This can lead to a large, up to 65KB, out-of-bounds read which could cause a denial-of-service if it reads from unmapped memory. Version 1.2.0 contains a patch for the out-of-bounds reads.
Severity ?
5.9 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| gssapi | gss-ntlmssp |
Affected:
< 1.2.0
|
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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