CVE-2023-52996
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…
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/5e9398a26a92fc402d82ce1f97cc67d832527da0Patch
- https://git.kernel.org/stable/c/7f9828fb1f688210e681268490576f0ca65c322aPatch
- https://git.kernel.org/stable/c/8f0eb24f1a7a60ce635f0d757a46f1a37a4d467dPatch
- https://git.kernel.org/stable/c/ca3cf947760de050d558293002ad3e7f4b8745d2Patch
- https://git.kernel.org/stable/c/f9753ebd61be2d957b5504cbd3fd719674f05b7aPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.