CVE-2019-11191

N/A
Published: April 11, 2019 at 11:07 PM UTC
Updated: June 17, 2026 at 02:12 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.5%

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 5.0.7

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (12)

Mailing Listx_refsource_MLISTThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/18/5
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/107887
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/4007-2/

CVSS

Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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