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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…
Low2.5EPSS 0.50%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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
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 (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.5.
Weakness
Affected products
n/a
- affected n/a
References (12)
- 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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2019-11191)Record last updated .