Use After Free Affecting bpftool package, versions <0:5.14.0-70.22.1.el9_0
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Test your applications- Snyk ID SNYK-ALMALINUX9-BPFTOOL-5645708
- published 28 May 2023
- disclosed 9 Aug 2022
Introduced: 9 Aug 2022
CVE-2022-1055 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 bpftool to version 0:5.14.0-70.22.1.el9_0 or higher.
This issue was patched in ALSA-2022:6003.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
References
- https://errata.almalinux.org/9/ALSA-2022-6002.html
- https://errata.almalinux.org/9/ALSA-2022-6003.html
- https://errata.almalinux.org/8/ALSA-2022-7444.html
- https://errata.almalinux.org/8/ALSA-2022-7683.html
- https://access.redhat.com/security/cve/CVE-2022-1055
- https://access.redhat.com/errata/RHSA-2022:6002
- https://access.redhat.com/errata/RHSA-2022:6003
- https://access.redhat.com/errata/RHSA-2022:7444
- https://access.redhat.com/errata/RHSA-2022:7683
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://security.netapp.com/advisory/ntap-20220506-0007/
- https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc