7.8

CVE-2023-4911

Warnung
Exploit

Glibc: buffer overflow in ld.so leading to privilege escalation

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Netapp ≫ Bootstrap Os Version -
   Netapp ≫ Hci Compute Node Version -
Gnu ≫ Glibc Version >= 2.34 < 2.39
Fedoraproject ≫ Fedora Version 37
Fedoraproject ≫ Fedora Version 38
Fedoraproject ≫ Fedora Version 39
Redhat ≫ Codeready Linux Builder For Arm64 Version 9.0_aarch64
Redhat ≫ Virtualization Version 4.0
Redhat ≫ Virtualization Host Version 4.0
Redhat ≫ Enterprise Linux Version 8.0
Redhat ≫ Enterprise Linux Version 9.0
Redhat ≫ Enterprise Linux Eus Version 8.6
Redhat ≫ Enterprise Linux Eus Version 9.2
Redhat ≫ Enterprise Linux Eus Version 9.4
Redhat ≫ Enterprise Linux Eus Version 9.6
Redhat ≫ Enterprise Linux For Arm 64 Version 9.0_aarch64
Redhat ≫ Enterprise Linux For Arm 64 Eus Version 8.6_aarch64
Redhat ≫ Enterprise Linux For Arm 64 Eus Version 9.2_aarch64
Redhat ≫ Enterprise Linux For Arm 64 Eus Version 9.4_aarch64
Redhat ≫ Enterprise Linux For Arm 64 Eus Version 9.6_aarch64
Canonical ≫ Ubuntu Linux Version 22.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 23.04
Debian ≫ Debian Linux Version 11.0
Debian ≫ Debian Linux Version 12.0
Netapp ≫ H410c Firmware Version -
   Netapp ≫ H410c Version -
Netapp ≫ H300s Firmware Version -
   Netapp ≫ H300s Version -
Netapp ≫ H500s Firmware Version -
   Netapp ≫ H500s Version -
Netapp ≫ H700s Firmware Version -
   Netapp ≫ H700s Version -
Netapp ≫ H410s Firmware Version -
   Netapp ≫ H410s Version -

21.11.2023: CISA Known Exploited Vulnerabilities (KEV) Catalog

GNU C Library Buffer Overflow Vulnerability

Schwachstelle

GNU C Library's dynamic loader ld.so contains a buffer overflow vulnerability when processing the GLIBC_TUNABLES environment variable, allowing a local attacker to execute code with elevated privileges.

Beschreibung

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 81.42% 0.996
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
RedHat 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html
Third Party Advisory
Exploit
VDB Entry
http://seclists.org/fulldisclosure/2023/Oct/11
Third Party Advisory
Exploit
Mailing List
http://www.openwall.com/lists/oss-security/2023/10/03/2
Exploit
Mailing List
https://security.gentoo.org/glsa/202310-03
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5453
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5455
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/
Mailing List
https://access.redhat.com/errata/RHSA-2023:5454
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5476
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0033
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4911
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2238352
Patch
Issue Tracking
https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt
Third Party Advisory
Exploit
https://www.qualys.com/cve-2023-4911/
Third Party Advisory
http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html
Third Party Advisory
Exploit
VDB Entry
http://www.openwall.com/lists/oss-security/2023/10/03/3
Mailing List
http://www.openwall.com/lists/oss-security/2023/10/05/1
Mailing List
http://www.openwall.com/lists/oss-security/2023/10/13/11
Mailing List
http://www.openwall.com/lists/oss-security/2023/10/14/3
Mailing List
http://www.openwall.com/lists/oss-security/2023/10/14/5
Mailing List
http://www.openwall.com/lists/oss-security/2023/10/14/6
Mailing List
https://security.netapp.com/advisory/ntap-20231013-0006/
Third Party Advisory
https://www.debian.org/security/2023/dsa-5514
Mailing List
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4911
US Government Resource
https://www.exploit-db.com/exploits/52479
Third Party Advisory
Exploit
VDB Entry
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-831302.html
Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
Third Party Advisory