A vulnerability in LibXcursor might allow remote attackers to execute arbitrary code.

Announced

2018-01-07

Revised

2018-01-07

Access

local, remote

Bugs

#639062

Advisory

https://security.gentoo.org/glsa/201801-04

Affected packages

Package	Arch	Vulnerable	Unaffected
x11-libs/libXcursor	*	< 1.1.15	>= 1.1.15

Background

X.Org X11 libXcursor runtime library.

Description

It was discovered that libXcursor is prone to several heap overflows when parsing malicious files.

Impact

A remote attacker, by enticing a user to process a specially crafted cursor file, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All LibXcursor users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/libXcursor-1.1.15"

References

• CVE-2017-16612