CVE-2019-11191

Low

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

Package Linux Kernel
Published 2019-04-12
Last modified 2024-11-21
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

2.5

out of 10
Low
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Vector string
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness type

CWE-362

CVE-2019-11191 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2019-11191 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2019-11191?

    CVE-2019-11191 is a Low severity Linux kernel vulnerability with a CVSS score of 2.5 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2019-11191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2019-11191?

    CVE-2019-11191 has a CVSS score of 2.5 out of 10, rated Low severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N .

  • Is there a patch available for CVE-2019-11191?

    No patch is currently available for CVE-2019-11191. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2019-11191 actively exploited?

    No — CVE-2019-11191 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Race Condition (CWE-362)?

    The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →