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CVE-2023-4911

Scores

EPSS

0.743medium74.3%
0%20%40%60%80%100%

Percentile: 74.3%

CVSS

7.8high3.x
0246810

CVSS Score: 7.8/10

All CVSS Scores

CVSS 3.x
7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

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Sources

debiannvdredhatubuntu

CWEs

119CWE-122CWE-787

Related Vulnerabilities

BDU:2023-06269

Exploits

Exploit ID: 52479

Source: exploitdb

URL: https://www.exploit-db.com/exploits/52479

Exploit ID: CVE-2023-4911

Source: github-poc

URL: https://github.com/Aryan20057/CVE-2023-4911

Recommendations

Source: nvd

All glibc users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=sys-libs/glibc-2.37-r7”

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

Source: nvd

For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/2974891

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

Source: nvd

For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
For the update to take effect, all services linked to the glibc library must be restarted, or the system rebooted.

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

Source: nvd

Before applying this update, make sure all previously released erratarelevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258

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

Vulnerable Software (73)

Type: Configuration

Product: eglibc

Operating System: ubuntu trusty 14.04

Trait: 
{  "unfixed": true}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: debian

Trait: 
{  "fixed": "2.37-12"}

Source: debian

Type: Configuration

Product: glibc

Operating System: debian buster 10

Trait: 
{  "unaffected": true}

Source: debian

Type: Configuration

Product: glibc

Operating System: altlinux

Trait: 
{  "fixed": "6:2.32-alt5.p10.2"}

Source: redhat

Type: Configuration

Product: glibc

Operating System: ubuntu bionic 18.04

Trait: 
{  "unfixed": true}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: ubuntu focal 20.04

Trait: 
{  "unaffected": true}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: ubuntu jammy 22.04

Trait: 
{  "fixed": "2.35-0ubuntu3.4"}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: ubuntu lunar 23.04

Trait: 
{  "fixed": "2.37-0ubuntu2.1"}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: ubuntu mantic 23.10

Trait: 
{  "fixed": "2.38-1ubuntu6"}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: ubuntu noble 24.04

Trait: 
{  "fixed": "2.38-1ubuntu6"}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: ubuntu trusty 14.04

Trait: 
{  "unfixed": true}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: ubuntu xenial 16.04

Trait: 
{  "unfixed": true}

Source: ubuntu

Type: Configuration

Product: glibc

Operating System: rhel

Trait: 
{  "fixed": "2.28-225.el8_8.6"}

Source: redhat

Type: Configuration

Product: glibc

Operating System: rhel 8

Trait: 
{  "fixed": "2.28-225.el8_8.6"}

Source: redhat

Type: Configuration

Product: glibc

Operating System: rhel

Trait: 
{  "fixed": "2.28-189.6.el8_6"}

Source: redhat

Type: Configuration

Product: glibc

Operating System: rhel

Trait: 
{  "fixed": "2.34-60.el9_2.7"}

Source: redhat

Type: Configuration

Product: glibc

Operating System: rhel 9

Trait: 
{  "fixed": "2.34-60.el9_2.7"}

Source: redhat

Type: Configuration

Product: glibc

Operating System: rhel

Trait: 
{  "fixed": "2.34-28.el9_0.4"}

Source: redhat

Type: Configuration

Product: glibc

Operating System: rhel 4.4

Trait: 
{  "fixed": "2.28-189.6.el8_6"}

Source: redhat

Type: Configuration

Product: glibc-core

Operating System: altlinux

Trait: 
{  "fixed": "6:2.32-alt5.p10.2"}

Source: redhat