CVE-2019-11191
LOW 2.5EPSS 0.5%
The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported
- CVSS v3.0
- 2.5 LOW
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS v2.0
- 1.9 LOW
AV:L/AC:M/Au:N/C:P/I:N/A:N - EPSS
- 0.50% chance of exploitation in the next 30 days, 41th percentile
- Published
- 2019-04-11
- Updated
- 2024-08-04
Proof-of-concept exploits (2)
- https://www.openwall.com/lists/oss-security/2019/04/03/4
- https://www.openwall.com/lists/oss-security/2019/04/03/4/1