Low severity3.3NVD Advisory· Published Nov 19, 2019· Updated Jun 17, 2026
CVE-2019-19126
CVE-2019-19126
Description
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.
AI Insight
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Affected products
14cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- GNU/GNU C Librarydescription
- osv-coords5 versionspkg:rpm/opensuse/glibc&distro=openSUSE%20Tumbleweedpkg:rpm/suse/glibc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/glibc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/glibc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015pkg:rpm/suse/glibc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1
< 2.34-1.2+ 4 more
- (no CPE)range: < 2.34-1.2
- (no CPE)range: < 2.26-13.36.1
- (no CPE)range: < 2.26-13.36.1
- (no CPE)range: < 2.26-13.36.1
- (no CPE)range: < 2.26-13.36.1
Patches
Vulnerability mechanics
References
5- sourceware.org/bugzilla/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlnvdMailing ListThird Party Advisory
- usn.ubuntu.com/4416-1/nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4FQ5LC6JOYSOYFPRUZ4S45KL6IP3RPPZ/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZFJ5E7NWOL6ROE5QVICHKIOUGCPFJVUH/nvd
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