CVE-2023-52606: powerpc/lib: Validate size for vector operations
First published: Wed Mar 06 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: powerpc/lib: Validate size for vector operations Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyse_instr(). Add a check to validate the assumption on the maximum size of the operations, so as to prevent any unintended kernel stack corruption.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.307 | 4.19.307 |
| redhat/kernel | <5.4.269 | 5.4.269 |
| redhat/kernel | <5.10.210 | 5.10.210 |
| redhat/kernel | <5.15.149 | 5.15.149 |
| redhat/kernel | <6.1.77 | 6.1.77 |
| redhat/kernel | <6.6.16 | 6.6.16 |
| redhat/kernel | <6.7.4 | 6.7.4 |
| redhat/kernel | <6.8 | 6.8 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.10-1 6.12.11-1 |
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Reference Links
- https://git.kernel.org/stable/c/0580f4403ad33f379eef865c2a6fe94de37febdf
- https://git.kernel.org/stable/c/28b8ba8eebf26f66d9f2df4ba550b6b3b136082c
- https://git.kernel.org/stable/c/42084a428a139f1a429f597d44621e3a18f3e414
- https://git.kernel.org/stable/c/848e1d7fd710900397e1d0e7584680c1c04e3afd
- https://git.kernel.org/stable/c/8f9abaa6d7de0a70fc68acaedce290c1f96e2e59
- https://git.kernel.org/stable/c/abd26515d4b767ba48241eea77b28ce0872aef3e
- https://git.kernel.org/stable/c/beee482cc4c9a6b1dcffb2e190b4fd8782258678
- https://git.kernel.org/stable/c/de4f5ed63b8a199704d8cdcbf810309d7eb4b36b
- https://launchpad.net/bugs/cve/CVE-2023-52606
- https://access.redhat.com/security/cve/CVE-2023-52606
- https://lore.kernel.org/linux-cve-announce/2024030647-CVE-2023-52606-fdcc@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2268294
- https://access.redhat.com/errata/RHSA-2024:3618
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2268293
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52606
- https://nvd.nist.gov/vuln/detail/CVE-2023-52606
- https://security-tracker.debian.org/tracker/CVE-2023-52606
- https://ubuntu.com/security/CVE-2023-52606
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://git.kernel.org/linus/8f9abaa6d7de0a70fc68acaedce290c1f96e2e59
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