csaf_redhat - rhsa-2020

rhsa-2020_2242

Vulnerability from csaf_redhat

Published

2020-05-20 17:37

Modified

2024-09-13 22:03

Summary

Red Hat Security Advisory: kernel-rt security and bug fix update

Notes

Topic

An update for kernel-rt is now available for Red Hat Enterprise MRG 2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c (CVE-2017-18595) * kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c (CVE-2019-19768) * Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic (CVE-2020-10711) 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. Bug Fix(es): * update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1823371)

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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          "names": [
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          "organization": "gd-ms.com"
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          "title": "Vulnerability description"
        },
        {
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          "text": "Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of the kernel packages as shipped with the Red Hat Enterprise Linux 6 starting with the Red Hat Enterprise Linux 6.7 GA version kernel-2.6.32-573 . Prior Red Hat Enterprise Linux 6 kernel versions are not affected.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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}

cve-2017-18595

Vulnerability from cvelistv5

Published

2019-09-04 20:33

Modified

2024-08-05 21:28

Severity

Summary

An issue was discovered in the Linux kernel before 4.14.11. A double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c.

References

URL	Tags
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4397f04575c44e1440ec2e49b6302785c95fd2f8	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html	vendor-advisory, x_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html	vendor-advisory, x_refsource_SUSE

Impacted products

Vendor	Product
n/a	n/a

Show details on NVD website

JSON

To clipboard

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              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11"
            },
            {
              "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4397f04575c44e1440ec2e49b6302785c95fd2f8",
              "refsource": "MISC",
              "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4397f04575c44e1440ec2e49b6302785c95fd2f8"
            },
            {
              "name": "openSUSE-SU-2019:2307",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html"
            },
            {
              "name": "openSUSE-SU-2019:2308",
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              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html"
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    "assignerShortName": "mitre",
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    "dateReserved": "2019-09-04T00:00:00",
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cve-2019-19768

Vulnerability from cvelistv5

Published

2019-12-12 19:38

Modified

2024-08-05 02:25

Severity

Summary

In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).

References

URL	Tags
https://bugzilla.kernel.org/show_bug.cgi?id=205711	x_refsource_MISC
https://security.netapp.com/advisory/ntap-20200103-0001/	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html	vendor-advisory, x_refsource_SUSE
https://usn.ubuntu.com/4344-1/	vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4345-1/	vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4342-1/	vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4346-1/	vendor-advisory, x_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html	mailing-list, x_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	mailing-list, x_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html	mailing-list, x_refsource_MLIST
https://www.debian.org/security/2020/dsa-4698	vendor-advisory, x_refsource_DEBIAN

Impacted products

Vendor	Product
n/a	n/a

Show details on NVD website

JSON

To clipboard

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cve-2020-10711

Vulnerability from cvelistv5

Published

2020-05-22 14:09

Modified

2024-08-04 11:14

Severity

5.9 (Medium) - cvssV3_1 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.

References

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10711	x_refsource_CONFIRM
https://www.openwall.com/lists/oss-security/2020/05/12/2	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-20200608-0001/	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	mailing-list, x_refsource_MLIST
https://www.debian.org/security/2020/dsa-4698	vendor-advisory, x_refsource_DEBIAN
https://www.debian.org/security/2020/dsa-4699	vendor-advisory, x_refsource_DEBIAN
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html	vendor-advisory, x_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html	vendor-advisory, x_refsource_SUSE
https://usn.ubuntu.com/4413-1/	vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4411-1/	vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4412-1/	vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4419-1/	vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4414-1/	vendor-advisory, x_refsource_UBUNTU

Impacted products

Vendor	Product
Red Hat	Kernel

Show details on NVD website

JSON

To clipboard

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            "vendor-advisory",
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          "url": "https://www.debian.org/security/2020/dsa-4699"
        },
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Action not permitted

rhsa-2020_2242

Vulnerability from csaf_redhat

cve-2017-18595

Vulnerability from cvelistv5

cve-2019-19768

Vulnerability from cvelistv5

cve-2020-10711

Vulnerability from cvelistv5

Tags