CVE-2019-11191 Race condition in n/a

What is CVE-2019-11191?

CVE-2019-11191 is a low-severity vulnerability in Linux kernel, published on 11 Apr 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Weakness: CWE-362

Which versions are affected by CVE-2019-11191?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2019-11191?

Apply the vendor's patch.

Is CVE-2019-11191 being exploited?

There is no known exploitation of CVE-2019-11191 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-11191, GHSA-wv63-pcg9-3x4q, UBUNTU-CVE-2019-11191, USN-4006-2, USN-4007-1, USN-4007-2.