CVE-2021-47336
In the Linux kernel, the following vulnerability has been resolved: smackfs: restrict bytes count in smk_set_cipso() Oops, I failed to update subject line.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: smackfs: restrict bytes count in smk_set_cipso() Oops, I failed to update subject line. From 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001 Date: Mon, 12 Apr 2021 22:25:06 +0900 Subject: [PATCH] smackfs: restrict bytes count in smk_set_cipso() Commit 7ef4c19d245f3dc2 ("smackfs: restrict bytes count in smackfs write functions") missed that count > SMK_CIPSOMAX check applies to only format == SMK_FIXED24_FMT case.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6Patch
- https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766Patch
- https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0Patch
- https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafdPatch
- https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2Patch
- https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fcaPatch
- https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512bPatch
- https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4dPatch
- https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6Patch
- https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766Patch
- https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0Patch
- https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafdPatch
- https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2Patch
- https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fcaPatch
- https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512bPatch
- https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4dPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.