CVE-2023-53377
In the Linux kernel, the following vulnerability has been resolved: cifs: prevent use-after-free by freeing the cfile later In smb2_compound_op we have a possible use-after-free which can cause hard to debug problems later on.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.15%). 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: cifs: prevent use-after-free by freeing the cfile later In smb2_compound_op we have a possible use-after-free which can cause hard to debug problems later on. This was revealed during stress testing with KASAN enabled kernel. Fixing it by moving the cfile free call to a few lines below, after the usage.
- 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
- 0.15% probability · 4th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/33f736187d08f6bc822117629f263b97d3df4165Patch
- https://git.kernel.org/stable/c/4fe07d55a5461e66a55fbefb57f85ff0facea32bPatch
- https://git.kernel.org/stable/c/b6353518ef8180816e863aa23b06456f395404d6Patch
- https://git.kernel.org/stable/c/d017880782cf71f8820ee4a2002843893176501dPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.