Microsoft security update for CVE-2020-14311
🔗 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-2020-14311. This page also shows what EchelonGraph holds for CVE-2020-14311, 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 grub2 2.06-23 on Azure Linux 3.0
- cbl2 grub2 2.06~rc1-7 on CBL Mariner 2.0
- cm1 grub2 2.06~rc1-4 on CBL Mariner 1.0
✅ Updates Microsoft lists: 3 updates
3 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 | 2.06-23 |
| — | Security Update | - |
| — | Security Update | 2.06~rc1-7 |
🧭 EchelonGraph on CVE-2020-14311
- EchelonGraph score
- 5.7 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.
Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2020-14311, 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).