CVE-2019-11191 (GCVE-0-2019-11191)

Vulnerability from cvelistv5 – Published: 2019-04-11 23:07 – Updated: 2024-08-04 22:48 Disputed
VLAI?
Summary
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
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
https://www.openwall.com/lists/oss-security/2019/… x_refsource_MISC
https://www.openwall.com/lists/oss-security/2019/… x_refsource_MISC
http://www.securityfocus.com/bid/107887 vdb-entryx_refsource_BID
http://www.openwall.com/lists/oss-security/2019/04/18/5 mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2019/05/22/7 mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4007-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4008-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4006-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4006-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4007-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4008-3/ vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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