CVE-2023-52893
In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable We can get EFI variables without fetching the attribute, so we must allow for that in gsmi. commit 859748255b43 ("efi: pstore: Omit efivars…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable We can get EFI variables without fetching the attribute, so we must allow for that in gsmi. commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access layer") added a new get_variable call with attr=NULL, which triggers panic in gsmi.
- 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
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/32313c11bdc8a02c577abaf865be3664ab30410aPatch
- https://git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393Patch
- https://git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8Patch
- https://git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfdPatch
- https://git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2Patch
- https://git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4bPatch
- https://git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.