CVE-2019-11191
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…
- 2.5LowCVSS base score
- 0.50%Exploitation in 30 daysEPSS · top 57% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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
Timeline
ID reserved
By mitre
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Low2.5 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.50% · top 57% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.5.
Affected products
n/a
- affected n/a
References
References12
- https://www.openwall.com/lists/oss-security/2019/04/03/4 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.openwall.com/lists/oss-security/2019/04/03/4/1 (opens in a new tab)x_refsource_MISCx_transferred
- 107887 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20190418 Re: Linux kernel < 4.8 local generic ASLR - another CVE-ID (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20190522 Re: Linux kernel < 4.8 local generic ASLR - another CVE-ID (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4007-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4008-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4006-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4006-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4007-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4008-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- openSUSE-SU-2019:1570 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-2895 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-11191)Record last updated .