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
libgcrypt11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	groovy	Does not exist
	trusty	Not vulnerable (1.5.3-2ubuntu4.6+esm1)
	upstream	Needs triage
	xenial	Does not exist
libgcrypt20 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (1.8.1-4ubuntu1.2)
	focal	Not vulnerable (1.8.5-5ubuntu1)
	groovy	Not vulnerable (1.8.5-5ubuntu2)
	trusty	Does not exist
	upstream	Released (1.9.1)
	xenial	Not vulnerable (1.6.5-2ubuntu0.6)

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

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›