Medium severity5.5NVD Advisory· Published Mar 27, 2025· Updated Jun 17, 2026
CVE-2023-52996
CVE-2023-52996
Description
In the Linux kernel, the following vulnerability has been resolved:
ipv4: prevent potential spectre v1 gadget in fib_metrics_match()
if (!type) continue; if (type > RTAX_MAX) return false; ... fi_val = fi->fib_metrics->metrics[type - 1];
@type being used as an array index, we need to prevent cpu speculation or risk leaking kernel memory content.
Affected products
9cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.14,<5.4.231
- cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 4.14
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/5e9398a26a92fc402d82ce1f97cc67d832527da0nvdPatch
- git.kernel.org/stable/c/7f9828fb1f688210e681268490576f0ca65c322anvdPatch
- git.kernel.org/stable/c/8f0eb24f1a7a60ce635f0d757a46f1a37a4d467dnvdPatch
- git.kernel.org/stable/c/ca3cf947760de050d558293002ad3e7f4b8745d2nvdPatch
- git.kernel.org/stable/c/f9753ebd61be2d957b5504cbd3fd719674f05b7anvdPatch
News mentions
0No linked articles in our index yet.