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CVE-2021-3345

Published: 29 January 2021

_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.

Priority

High

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
libgcrypt20
Launchpad, Ubuntu, Debian
upstream
Released (1.9.1)
trusty Does not exist

xenial Not vulnerable
(1.6.5-2ubuntu0.6)
bionic Not vulnerable
(1.8.1-4ubuntu1.2)
focal Not vulnerable
(1.8.5-5ubuntu1)
groovy Not vulnerable
(1.8.5-5ubuntu2)
libgcrypt11
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Not vulnerable
(1.5.3-2ubuntu4.6+esm1)
xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H