CVE-2019-20172

Description

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.

Weakness classification

• CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

Primary references

• cve@mitre.org — Exploit, Third Party Advisory
• cve@mitre.org — Patch, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory