Buffer overflow in Linux kernel - CVE-2024-49996
Published: October 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU99101
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-49996
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the parse_reparse_posix() and cifs_reparse_point_to_fattr() functions in fs/smb/client/reparse.c. A local user can escalate privileges on the system.
How to mitigate CVE-2024-49996
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/c6db81c550cea0c73bd72ef55f579991e0e4ba07
- https://git.kernel.org/stable/c/803b3a39cb096d8718c0aebc03fd19f11c7dc919
- https://git.kernel.org/stable/c/c173d47b69f07cd7ca08efb4e458adbd4725d8e9
- https://git.kernel.org/stable/c/e2a8910af01653c1c268984855629d71fb81f404
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.231
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.174
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.287
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.120
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55