CVE-2023-4911: Glibc: buffer overflow in ld.so leading to privilege escalation
Siemens · glibc
Vendor fix available · Affected: Siemens glibc · Exploitation: in CISA KEV since 21 Nov 2023
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
ExploitationIn CISA KEV
- In CISA KEVCISA KEV catalogue21 Nov 2023
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not established: not seen
Higher than 99% of scored CVEs
DescriptionCVE.org
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.
Affected products13
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- glibcfrom 2.34 before 2.39
- Red Hat · Red Hat Enterprise Linux 8Versions not stated
- Red Hat · Red Hat Enterprise Linux 8Versions not stated
- Red Hat · Red Hat Enterprise Linux 8.6 Extended Update SupportVersions not stated
- Red Hat · Red Hat Enterprise Linux 9Versions not stated
- Red Hat · Red Hat Enterprise Linux 9Versions not stated
- Red Hat · Red Hat Enterprise Linux 9.0 Extended Update SupportVersions not stated
- Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Versions not stated
- Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Versions not stated
- Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Versions not stated
- Red Hat · Red Hat Enterprise Linux 6Versions not stated
- Red Hat · Red Hat Enterprise Linux 7Versions not stated
- Red Hat · Red Hat Enterprise Linux 7Versions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.
- CISA KEV
- Listed since 21 Nov 2023 · catalogue entry
- Public check
- No public nuclei template
- Vendor
- Siemens
- Published
- October 2023
What changed
- CISA added it to the KEV catalogue CISA
CoverageNo articles yet
No CyberSIXT article names CVE-2023-4911 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CISA KEV cataloguecisa.gov
- CVE recordcve.org
- Weakness CWE-122cwe.mitre.org
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- access.redhat.com/security/cve/CVE-2023-4911access.redhat.com
- Issue trackerbugzilla.redhat.com
- qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilqualys.com
- qualys.com/cve-2023-4911qualys.com
- exploit-db.com/exploits/52479exploit-db.com
- packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilegepacketstormsecurity.com
- packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Espacketstormsecurity.com
18 more references are in the CVE record.