CVE-2019-20172

Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.

Score

CVSS 3.1 7.8 High

Status

Modified - cve@mitre.org

Published

2019-12-31

Last modified

2024-08-05

Weaknesses

CWE-119

Affected products

• Serenityos (Serenityos)

References

• https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom
• https://github.com/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9