Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2023-4911

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable.
Back to all
CVE

CVE-2023-4911

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable.

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBCTUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBCTUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.8
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?fieldcve=CVE-2023-4911, https://access.redhat.com/errata/RHSA-2023:5453, https://access.redhat.com/errata/RHSA-2023:5454, https://access.redhat.com/errata/RHSA-2023:5455, https://access.redhat.com/errata/RHSA-2023:5476, https://access.redhat.com/errata/RHSA-2024:0033, https://access.redhat.com/security/cve/CVE-2023-4911, https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt, https://www.qualys.com/cve-2023-4911/, http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html, http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html, http://seclists.org/fulldisclosure/2023/Oct/11, https://security.gentoo.org/glsa/202310-03, https://security.netapp.com/advisory/ntap-20231013-0006/, https://bugzilla.redhat.com/showbug.cgi?id=2238352, http://www.openwall.com/lists/oss-security/2023/10/03/2, http://www.openwall.com/lists/oss-security/2023/10/03/3, http://www.openwall.com/lists/oss-security/2023/10/05/1, http://www.openwall.com/lists/oss-security/2023/10/13/11, http://www.openwall.com/lists/oss-security/2023/10/14/3, http://www.openwall.com/lists/oss-security/2023/10/14/5, http://www.openwall.com/lists/oss-security/2023/10/14/6, https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/, https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/, https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/, https://www.debian.org/security/2023/dsa-5514

Severity

7.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.8
EPSS Probability
0.73037%
EPSS Percentile
0.98739%
Introduced Version
ae37d06c7d127817ba43850f0f898b793d42aea7,0
Fix Available
ef321e23c20eebc6d6fb4044425c00e6df27b05f,0:2.34-60.el9_2.7,0:2.28-225.el8_8.6,2.36-9+deb12u3,2.31-13+deb11u7,2.37-12,0:2.38-1ubuntu6,0:2.35-0ubuntu3.4,2:2.34-60.0.3.ksplice1.el9,0:2.34-60.0.3.el9_2.7,0:2.34-60.0.3.el9,2:2.34-60.0.3.ksplice1.el9_2.7,2:2.28-225.0.4.ksplice1.el8_8.6,2:2.28-225.0.4.ksplice1.el8,0:2.28-225.0.4.el8,0:2.28-225.0.4.el8_8.6,0:2.34-52.amzn2023.0.6

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading