#VU17462 Heap-based buffer overflow in libXcursor - CVE-2015-9262
Vulnerability identifier: #VU17462
Vulnerability risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2015-9262
CWE-ID:
CWE-122
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libXcursor
Universal components / Libraries /
Libraries used by multiple products
Vendor: X.org
Description
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in _XcursorThemeInherits in library.c. A remote attacker can trigger a one-byte heap overflow and cause the service to crash or execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
libXcursor: 1.1.5.2 - 1.1.14
External links
https://access.redhat.com/errata/RHSA-2018:3059
https://access.redhat.com/errata/RHSA-2018:3505
https://bugs.freedesktop.org/show_bug.cgi?id=90857
https://cgit.freedesktop.org/xorg/lib/libXcursor/commit/?
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
