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SUSE: 2022:3373-1 Important Kernel Patch: Race Condition & Use-After-Free

suse
Calendar Grey September 25, 2022
Dist Suse Esm H88
SUSE reveals update for kernel security tackling two vulnerabilities with risk assessments; check online for further information.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-95_96 fixes several issues. The following security issues were fixed: - CVE-2022-39188: Fixed a race condition between unmap_mapping_range() and munmap() on VM_PFNMAP mappings leads to stale TLB entry (bsc#1203116). - CVE-2022-1652: Fixed a use-after-free in bad_flp_intr (bsc#1200057). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Live Patching 12-SP4: zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-3373=1 Package List: - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64): kgraft-patch-4_12_14-95_96-default-8-2.2

Topics%20covered

Topics Covered

security advisory kernel patch important race condition SUSE use-after-free unmap mapping

References

#1200057 #1203116

Cross- CVE-2022-1652 CVE-2022-39188

CVSS scores:

CVE-2022-1652 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1652 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-39188 (NVD) : 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2022-39188 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise Live Patching 12-SP4

https://www.suse.com/security/cve/CVE-2022-1652.html

https://www.suse.com/security/cve/CVE-2022-39188.html

https://bugzilla.suse.com/1200057

https://bugzilla.suse.com/1203116

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:3373-1
Rating: important

Topics%20covered

Topics Covered

security advisory kernel patch important race condition SUSE use-after-free unmap mapping

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