Buffer overflow in libxt (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU32668

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-2005

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

X.org libXt 1.1.3 and earlier does not check the return value of the XGetWindowProperty function, which allows X servers to trigger use of an uninitialized pointer and memory corruption via vectors related to the (1) ReqCleanup, (2) HandleSelectionEvents, (3) ReqTimedOut, (4) HandleNormal, and (5) HandleSelectionReplies functions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libxt (Alpine package): 1.1.1-r0 - 1.1.3-r0

CPE2.3

• cpe:2.3:a:alpine:libxt_alpine_package:1.1.1-r0:*:*:*:*:alpine_linux:*:2.2
• cpe:2.3:a:alpine:libxt_alpine_package:1.1.3-r0:*:*:*:*:alpine_linux:*:2.3

External links

https://git.alpinelinux.org/aports/commit/?id=2d73a8baf70359de148a4b5c1a7d564813ad00e0
https://git.alpinelinux.org/aports/commit/?id=900dfe0f423c81fcb79993817b83dbff2d18435c
https://git.alpinelinux.org/aports/commit/?id=dc3a97fa22906a13cba3bd29a3792081ecaa3119
https://git.alpinelinux.org/aports/commit/?id=e6d9eccdf7eeb94ed8fdd2cd4e7ebd51ed7fb04a

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.