low3.3
CVE-2019-19126
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 executio…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Gnu | Glibc | before 2.31 |
| Canonical | Ubuntu Linux | Versions 16.04, 18.04, 19.10 |
| Fedoraproject | Fedora | Versions 30, 31 |
| Debian | Debian Linux | Version 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- 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
- https://usn.ubuntu.com/4416-1/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html