SUSE: 2021:3718-1 Important: Kernel Patch for eBPF and Overflow Issues
suse
November 17, 2021
An update that fixes two vulnerabilities is now available
Summary
This update for the Linux Kernel 5.3.18-59_13 fixes several issues. The following security issues were fixed: - CVE-2021-34866: Fixed possible eBPF Type Confusion privilege escalation vulnerability via eBPF type confusion (bsc#1191646). - CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#1191318). 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 Module for Live Patching 15-SP3: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-3718=1 SUSE-SLE-Module-Live-Patching-15-SP3-2021-3719=1 Package List:
Topics Covered
References
#1191318 #1191646
Cross- CVE-2021-34866 CVE-2021-41864
CVSS scores:
CVE-2021-34866 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-41864 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP3
https://www.suse.com/security/cve/CVE-2021-34866.html
https://www.suse.com/security/cve/CVE-2021-41864.html
https://bugzilla.suse.com/1191318
https://bugzilla.suse.com/1191646
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Announcement ID: SUSE-SU-2021:3718-1
Rating: important
Topics Covered
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