CVE-2019-19126

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Summary

CVECVE-2019-19126
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-11-19 22:15:00 UTC
Updated2023-11-07 03:07:00 UTC
DescriptionOn 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.

Risk And Classification

Problem Types: CWE-665

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.10 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 31 All All All
Application Gnu Glibc All All All All
Application Gnu Glibc All All All All

References

ReferenceSourceLinkTags
25204 – (CVE-2019-19126) LD_PREFER_MAP_32BIT_EXEC not ignored in setuid binaries (CVE-2019-19126) MISC sourceware.org Issue Tracking, Patch, Third Party Advisory
[SECURITY] Fedora 30 Update: glibc-2.29-28.fc30 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 31 Update: glibc-2.30-10.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 31 Update: glibc-2.30-10.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] [DLA 3152-1] glibc security update MLIST lists.debian.org
USN-4416-1: GNU C Library vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
[SECURITY] Fedora 30 Update: glibc-2.29-28.fc30 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 181138 Debian Security Update for glibc (DLA 3152-1)
  • 352480 Amazon Linux Security Advisory for glibc: ALAS-2021-1511
  • 354757 Amazon Linux Security Advisory for glibc : ALAS2-2023-1944
  • 355862 Amazon Linux Security Advisory for glibc : ALAS2-2023-2221
  • 377356 Alibaba Cloud Linux Security Update for glibc (ALINUX3-SA-2022:0122)
  • 377443 Alibaba Cloud Linux Security Update for glibc (ALINUX2-SA-2020:0164)
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 670176 EulerOS Security Update for glibc (EulerOS-SA-2021-1676)
  • 670849 EulerOS Security Update for glibc (EulerOS-SA-2021-1676)
  • 730227 McAfee Web Gateway Multiple Vulnerabilities (WP-3426, WP-3427, WP-3307, WP-3444, WP-3452, WP-3475)
  • 900243 CBL-Mariner Linux Security Update for glibc 2.28
  • 902913 Common Base Linux Mariner (CBL-Mariner) Security Update for glibc (2554)
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