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

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

References

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