CVE-2025-39964
LOWLinux Kernel - Denial of Service via Concurrent af_alg Socket Writes
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2025-39964. PoCs published by n1k0oowang.
AI-analyzed exploit summary This exploit targets a Linux kernel vulnerability (CVE-2025-39964) by leveraging AF_ALG socket operations to achieve local privilege escalation (LPE). It employs memory spraying, KASLR bypass, and core_pattern manipulation to execute arbitrary code with root privileges.
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Issuing two writes to the same af_alg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, concurrent writes may create inconsistencies in the internal socket state. Disallow this by adding a new ctx->write field that indiciates exclusive ownership for writing.
Exploits (1)
This exploit targets a Linux kernel vulnerability (CVE-2025-39964) by leveraging AF_ALG socket operations to achieve local privilege escalation (LPE). It employs memory spraying, KASLR bypass, and core_pattern manipulation to execute arbitrary code with root privileges.
References (7)
Scores
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L