Debian update for epiphany-browser

1) Out-of-bounds write

EUVDB-ID: #VU66422

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-2022-29536

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing a long page title in the ephy_string_shorten() function in the UI process. A remote attacker can create a specially crafted website, trick the victim into visiting it, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update epiphany-browser package to version 3.38.2-1+deb11u3.

Vulnerable software versions

Debian Linux: All versions

epiphany-browser (Debian package): before 3.38.2-1+deb11u3

External links

http://www.debian.org/security/2022/dsa-5208

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.