#VU53851 Use of Uninitialized Variable


Published: 2021-06-07

Vulnerability identifier: #VU53851

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-25014

CWE-ID: CWE-457

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libwebp
Other software / Other software solutions

Vendor: developers.google.com

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to usage of unitialized variable in the ReadSymbol() function in libwebp. A remote attacker can trick the victim to open a specially crated file and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libwebp: 0.1.2, 0.1.3, 0.1.99, 0.2.0, 0.2.0 rc1, 0.2.1, 0.3.0, 0.3.0 rc6, 0.3.0 rc7, 0.3.1, 0.3.1 rc1, 0.3.1 rc2, 0.4.0, 0.4.0 rc1, 0.4.1, 0.4.1 rc1, 0.4.2, 0.4.2 rc2, 0.4.3, 0.4.3 rc1, 0.4.4, 0.4.4 rc2, 0.5.0, 0.5.0 rc1, 0.5.1, 0.5.1 rc5, 0.5.2, 0.5.2 rc2, 0.6.0, 0.6.0 rc2, 0.6.0 rc3, 0.6.1, 0.6.1 rc2, 1.0.0, 1.0.0 rc1, 1.0.0 rc2, 1.0.0 rc3, 1.0.1 rc2

CPE

External links
https://bugzilla.redhat.com/show_bug.cgi?id=1956927
https://lists.debian.org/debian-lts-announce/2021/06/msg00005.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00006.html


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.


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