CVE-2019-3836

Published: 1 April 2019

It was discovered in gnutls before version 3.6.7 upstream that there is an uninitialized pointer access in gnutls versions 3.6.3 or later which can be triggered by certain post-handshake messages.

Notes

Author	Note
mdeslaur	3.6.4 and later

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
gnutls26 Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Not vulnerable (code not present)
	upstream	Needs triage
	xenial	Does not exist
gnutls28 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (code not present)
	cosmic	Released (3.6.4-2ubuntu1.2)
	disco	Released (3.6.5-2ubuntu1.1)
	trusty	Does not exist (trusty was not-affected [code not present])
	upstream	Released (3.6.7)
	xenial	Not vulnerable (code not present)
	Patches: upstream: https://gitlab.com/gnutls/gnutls/commit/96e07075e8f105b13e76b11e493d5aa2dd937226

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/704

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