Use After Free Affecting bpftool package, versions <0:7.0.0-284.11.1.el9_2
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Test your applications- Snyk ID SNYK-ALMALINUX9-BPFTOOL-5644122
- published 28 May 2023
- disclosed 9 May 2023
Introduced: 9 May 2023
CVE-2022-42896 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 bpftool to version 0:7.0.0-284.11.1.el9_2 or higher.
This issue was patched in ALSA-2023:2458.
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.
There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim.
We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url
References
- https://errata.almalinux.org/9/ALSA-2023-2148.html
- https://errata.almalinux.org/9/ALSA-2023-2458.html
- https://errata.almalinux.org/8/ALSA-2023-4517.html
- https://errata.almalinux.org/8/ALSA-2023-4541.html
- https://access.redhat.com/security/cve/CVE-2022-42896
- https://access.redhat.com/errata/RHSA-2023:2148
- https://access.redhat.com/errata/RHSA-2023:2458
- https://access.redhat.com/errata/RHSA-2023:4517
- https://access.redhat.com/errata/RHSA-2023:4541
- https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
- https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4