Home > Vulnerability Database > CVE-2023-4911

Mend.io Vulnerability Database

CVE-2023-4911

Date: October 3, 2023

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

Language: C

Severity Score

7.8

Related Resources (30)

Url: http://www.openwall.com/lists/oss-security/2023/10/14/6

Url: http://www.openwall.com/lists/oss-security/2023/10/14/5

Url: https://security.netapp.com/advisory/ntap-20231013-0006/

Url: https://access.redhat.com/security/cve/CVE-2023-4911

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/

Url: https://access.redhat.com/errata/RHSA-2023:5453

Url: https://access.redhat.com/errata/RHSA-2024:0033

Url: https://access.redhat.com/errata/RHSA-2023:5454

Url: https://access.redhat.com/errata/RHSA-2023:5476

Url: https://security-tracker.debian.org/tracker/CVE-2023-4911

Url: http://www.openwall.com/lists/oss-security/2023/10/03/2

Url: http://www.openwall.com/lists/oss-security/2023/10/03/3

Url: http://www.openwall.com/lists/oss-security/2023/10/05/1

Url: http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-4911

Url: https://access.redhat.com/errata/RHSA-2023:5455

Url: https://security.gentoo.org/glsa/202310-03

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/

Url: https://www.qualys.com/cve-2023-4911/

Url: http://www.openwall.com/lists/oss-security/2023/10/13/11

Url: https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt

Url: https://www.debian.org/security/2023/dsa-5514

Url: http://seclists.org/fulldisclosure/2023/Oct/11

Url: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4911

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2238352

Url: https://access.redhat.com/errata/RHBA-2024:2413

Url: http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html

Url: http://www.openwall.com/lists/oss-security/2023/10/14/3

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/

Url: https://www.mend.io/vulnerability-database/CVE-2023-4911

Severity Score

7.8

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Heap-based Buffer Overflow

CWE-122

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

Mend.io Vulnerability Database

We found results for “”

CVE-2023-4911

Date: October 3, 2023

Language: C

Severity Score

Related Resources (30)

Severity Score

Weakness Type (CWE)

CVSS v3.1

Do you need more information?