Microsoft advisory for CVE-2018-6829 — azl3 grub2 2.06-23 on Azure Linux 3.0
🔗 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-2018-6829. This page also shows what EchelonGraph holds for CVE-2018-6829, 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 products1
- azl3 grub2 2.06-23 on Azure Linux 3.0
🧭 EchelonGraph on CVE-2018-6829
- EchelonGraph score
- 7.5 HIGH
- CISA KEV
- Not listed
- Fix status
- No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
Description from the CVE record (CVE.org), as published by its numbering authority
cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for Libgcrypt's ElGamal implementation.
Published by MITRE Corporation, the CVE Numbering Authority that assigned CVE-2018-6829, 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).