Debian update for webkit2gtk

1) Use-after-free

EUVDB-ID: #VU26076

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-10018

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing web conftent. A remote attacker can trick a victim to visit a specially crafted web page, trigger use-after-free error and execute arbitrary code on the target system.

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

Mitigation

Update webkit2gtk package to version 2.26.4-1~deb10u2.

Vulnerable software versions

webkit2gtk (Debian package): 2.26.0-1 - 2.26.4-1

CPE2.3

• cpe:2.3:o:debian:webkit2gtk_debian_package:2.26.0-1:*:*:*:*:debian_linux:*:*
• cpe:2.3:o:debian:webkit2gtk_debian_package:2.26.1-1:*:*:*:*:debian_linux:*:*
• cpe:2.3:o:debian:webkit2gtk_debian_package:2.26.1-2:*:*:*:*:debian_linux:*:*

External links

https://www.debian.org/security/2020/dsa-4641

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.