CVE-2023-5345
Use-after-free in Linux kernel's fs/smb/client component
HIGH 7.8EPSS 0.5%
A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation.In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free.We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705.
- Affected
- Linux · Kernel
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.48% chance of exploitation in the next 30 days, 40th percentile
- Published
- 2023-10-03
- Updated
- 2025-02-27
Proof-of-concept exploits (3)
- Lotuhu/Page-UAF154★ · 2024-08-09
- MPI-SysSec/DirtyFree31★ · 2026-03-04
- MPI-SysSec/Heap-Localization9★ · 2026-06-03
Exploit collections (1)
- linux/kernelctf/CVE-2023-5345_lts_mitigationgoogle/security-research
Security advisories
- http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1…
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6e43b8aa7c…
- https://kernel.dance/e6e43b8aa7cd3c3af686caf0c2e11819a886d705