Microsoft security update for CVE-2023-4911
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4911. This page also shows what EchelonGraph holds for CVE-2023-4911, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products3
- azl3 glibc 2.38-10 on Azure Linux 3.0
- azl3 glibc 2.38-6 on Azure Linux 3.0
- cbl2 glibc 2.35-5 on CBL Mariner 2.0
✅ Updates Microsoft lists: 2 updates
2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 2.35-5 |
| — | Security Update | 2.38-6 |
🧭 EchelonGraph on CVE-2023-4911
- EchelonGraph score
- 9.0 CRITICAL
- CISA KEV
- Listed since November 21, 2023
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
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.
Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2023-4911, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).