CVE-2019-3829

Published: 27 March 2019

A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7. A memory corruption (double free) vulnerability in the certificate verification API. Any client or server application that verifies X.509 certificates with GnuTLS 3.5.8 or later is affected.

Notes

Author	Note
mdeslaur	3.5.8 or later

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
gnutls26 Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Not vulnerable (code not present)
	xenial	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
gnutls28 Launchpad, Ubuntu, Debian	upstream	Released (3.6.7)
	trusty	Does not exist (trusty was not-affected [code not present])
	xenial	Not vulnerable (code not present)
	bionic	Released (3.5.18-1ubuntu1.1)
	cosmic	Released (3.6.4-2ubuntu1.2)
	disco	Released (3.6.5-2ubuntu1.1)
	Patches: upstream: https://gitlab.com/gnutls/gnutls/commit/d39778e43d1674cb3ab3685157fd299816d535c0 (3.6) upstream: https://gitlab.com/gnutls/gnutls/commit/372821c883a3d36ed3ed683844ad9d90818f6392 (3.6) upstream: https://gitlab.com/gnutls/gnutls/commit/6b5cbc9ea5bdca704bdbe2f8fb551f720d634bc6 (3.6) upstream: https://gitlab.com/gnutls/gnutls/commit/ad27713bef613e6c4600a0fb83ae48c6d390ff5b (3.6 test)

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Bugs

https://gitlab.com/gnutls/gnutls/issues/694

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