On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.
References
Link | Resource |
---|---|
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html | Mailing List Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4FQ5LC6JOYSOYFPRUZ4S45KL6IP3RPPZ/ | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZFJ5E7NWOL6ROE5QVICHKIOUGCPFJVUH/ | |
https://sourceware.org/bugzilla/show_bug.cgi?id=25204 | Issue Tracking Patch Third Party Advisory |
https://usn.ubuntu.com/4416-1/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-11-19T00:00:00
Updated: 2022-10-17T00:00:00
Reserved: 2019-11-19T00:00:00
Link: CVE-2019-19126
JSON object: View
NVD Information
Status : Modified
Published: 2019-11-19T22:15:11.427
Modified: 2023-11-07T03:07:31.533
Link: CVE-2019-19126
JSON object: View
Redhat Information
No data.
CWE