CVE-2019-19126
First published: Tue Nov 19 2019(Updated: )
Last updated 24 July 2024
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU glibc | <2.31 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| Fedoraproject Fedora | =30 | |
| Fedoraproject Fedora | =31 | |
| Debian Debian Linux | =10.0 | |
| debian/glibc | 2.31-13+deb11u11 2.31-13+deb11u10 2.36-9+deb12u8 2.36-9+deb12u7 2.40-3 |
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Reference Links
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4FQ5LC6JOYSOYFPRUZ4S45KL6IP3RPPZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZFJ5E7NWOL6ROE5QVICHKIOUGCPFJVUH/
- https://sourceware.org/bugzilla/show_bug.cgi?id=25204
- https://usn.ubuntu.com/4416-1/
- https://launchpad.net/bugs/cve/CVE-2019-19126
- 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/git/gitweb.cgi?p=glibc.git;a=object;h=b9eb92ab05204df772eb4929eccd018637c9f3e9
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d5dfad4326fc683c813df1e37bbf5cf920591c8e
- https://security-tracker.debian.org/tracker/CVE-2019-19126
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19126
- https://nvd.nist.gov/vuln/detail/CVE-2019-19126
- https://ubuntu.com/security/CVE-2019-19126
Frequently Asked Questions
What is CVE-2019-19126?
CVE-2019-19126 is a vulnerability in the GNU C Library (glibc) that allows local attackers to restrict the possible mapping addresses for loaded libraries and bypass ASLR.
How does CVE-2019-19126 impact the x86-64 architecture?
CVE-2019-19126 affects the x86-64 architecture by failing to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution.
Which versions of glibc are affected by CVE-2019-19126?
Versions 2.28-10+deb10u2, 2.31-13+deb11u6, 2.31-13+deb11u7, 2.36-9+deb12u2, 2.36-9+deb12u3, and 2.37-12 of glibc are affected by CVE-2019-19126.
How can local attackers exploit CVE-2019-19126?
Local attackers can exploit CVE-2019-19126 by using the LD_PREFER_MAP_32BIT_EXEC environment variable to restrict the possible mapping addresses for loaded libraries.
What is the severity of CVE-2019-19126?
CVE-2019-19126 has a severity rating of low with a score of 3.3.
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