#VU53842 Use-after-free


Published: 2021-06-07

Vulnerability identifier: #VU53842

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-2020-36329

CWE-ID: CWE-416

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 vulnerable system.

The vulnerability exists due to a use-after-free error in libwebp. A remote attacker can trick the victim to open a specially crafted file, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable 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=1956843
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.


Latest bulletins with this vulnerability