#VU53850 Out-of-bounds read


Published: 2021-06-07

Vulnerability identifier: #VU53850

Vulnerability risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-36331

CWE-ID: CWE-125

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 gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the ChunkAssignData() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory 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=1956856
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