SB2024060473 - Use-after-free in Linux kernel s390 crypto driver
Published: June 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060473
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-26957)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 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
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the zcrypt_pick_queue() and zcrypt_drop_queue() functions in drivers/s390/crypto/zcrypt_api.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/7e500849fa558879a1cde43f80c7c048c2437058
- https://git.kernel.org/stable/c/9daddee03de3f231012014dab8ab2b277a116a55
- https://git.kernel.org/stable/c/6470078ab3d8f222115e11c4ec67351f3031b3dd
- https://git.kernel.org/stable/c/a55677878b93e9ebc31f66d0e2fb93be5e7836a6
- https://git.kernel.org/stable/c/b7f6c3630eb3f103115ab0d7613588064f665d0d
- https://git.kernel.org/stable/c/a64ab862e84e3e698cd351a87cdb504c7fc575ca
- https://git.kernel.org/stable/c/befb7f889594d23e1b475720cf93efd2f77df000
- https://git.kernel.org/stable/c/394b6d8bbdf9ddee6d5bcf3e1f3e9f23eecd6484
- https://git.kernel.org/stable/c/50ed48c80fecbe17218afed4f8bed005c802976c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.312
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.215
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.154
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.274
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.84
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.3