linux: In the Linux kernel, the following vulnerability has been resolved: x86/mm, kexec, ima: Use memblock_free_late() fro...
CVE-2023-52576 is fixed in 21 products on 1 platform, first by ALAS2023-2023-385, released October 12, 2023. It is not reported as exploited. Patch Radar priority: Routine.
In the Linux kernel, the following vulnerability has been resolved: x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer() The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range(). With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic. Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| bpftool-debuginfo · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-debuginfo · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-devel · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-headers · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-libbpf · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-libbpf-devel · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-libbpf-static · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-livepatch-6.1.56-82.125 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-modules-extra · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-tools · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| kernel-tools-devel · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| linux · Debian 12.15 (bookworm) | 6.1.64-1 | DEBIAN-CVE-2023-52576 | Mar 2, 2024 |
| linux · Debian 13.5 (trixie) | 6.5.6-1 | DEBIAN-CVE-2023-52576 | Mar 2, 2024 |
| linux · Debian 14 | 6.5.6-1 | DEBIAN-CVE-2023-52576 | Mar 2, 2024 |
| perf · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| perf-debuginfo · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| python3-perf · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
| python3-perf-debuginfo · amzn 2023 | 6.1.56-82.125.amzn2023 | ALAS2023-2023-385 | Oct 12, 2023 |
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