CVE-2015-8791

Publication date 29 January 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The EbmlElement::ReadCodedSizeValue function in libEBML before 1.3.3 allows context-dependent attackers to obtain sensitive information from process heap memory via a crafted length value in an EBML id, which triggers an invalid memory access.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libebml	16.04 LTS xenial	Not affected
	15.10 wily	Ignored end of life
	15.04 vivid	Ignored end of life
	14.04 LTS trusty	Fixed 1.3.0-2+deb8u1build0.14.04.1
	12.04 LTS precise	Fixed 1.2.2-2+deb7u1build0.12.04.1

How can I get the fixes?
What do statuses mean?

Severity score breakdown

Parameter	Value
Base score	4.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References

MITRE
NVD
Launchpad
Debian

Other references

https://github.com/Matroska-Org/libebml/commit/24e5cd7c666b1ddd85619d60486db0a5481c1b90
https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html
http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html
https://www.cve.org/CVERecord?id=CVE-2015-8791