CVE-2019-19126
Last modified
CVE-2019-19126 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. 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.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| 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 |
References
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlMailing List, Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=25204Issue Tracking, Patch, Third Party Advisory
- https://usn.ubuntu.com/4416-1/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlMailing List, Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=25204Issue Tracking, Patch, Third Party Advisory
- https://usn.ubuntu.com/4416-1/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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