Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 36.2%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 4.6
References
- https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom
- https://github.com/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9
- https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom
- https://github.com/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9
Products affected by CVE-2019-20172
-
cpe:2.3:o:serenityos:serenityos:-