CVE-2023-42755: Kernel: rsvp: out-of-bounds read in rsvp_classify()
First published: Wed Sep 20 2023(Updated: )
A flaw was found in rsvp_change(). The root cause is an slab-out-of-bound access, but since the offset to the original pointer is an `unsign int` fully controlled by users, the behavior is usually a wild pointer access.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.3 | |
| Redhat Enterprise Linux | =8.0 | |
| Debian Debian Linux | =10.0 | |
| redhat/kernel | <6.3 | 6.3 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.6-1 6.12.9-1 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2023-42755
- https://bugzilla.redhat.com/show_bug.cgi?id=2239847
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://seclists.org/oss-sec/2023/q3/229
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://github.com/torvalds/linux/commit/265b4da82dbf5df04bee5a5d46b7474b1aaf326a
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2226790
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2258363
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2258364
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://launchpad.net/bugs/cve/CVE-2023-42755
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42755
- https://nvd.nist.gov/vuln/detail/CVE-2023-42755
- https://security-tracker.debian.org/tracker/CVE-2023-42755
- https://ubuntu.com/security/CVE-2023-42755
- https://lore.kernel.org/all/CADW8OBtkAf+nGokhD9zCFcmiebL1SM8bJp_oo=pE02BknG9qnQ@mail.gmail.com/
- https://git.kernel.org/linus/265b4da82dbf5df04bee5a5d46b7474b1aaf326a
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