1) Out-of-bounds write

EUVDB-ID: #VU66422

Risk: High

CVSSv3.1:

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

Install updates from vendor's website.

Vulnerable software versions

GNOME Web (Epiphany): 41.0 - 41.3

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CPE2.3

• cpe:2.3:a:gnome:epiphany:42.1:*:*:*:*:*:*:*

External links

http://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/1106
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5K5UPNHVWXDPSMBNSB2645MD2N5CXQS/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLLDMY4JYDZTMZSCPSY23K5YW3SQYUR6/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N7YWVIUGFRA6GOE3QAPSJJ6EL3DJG5NX/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?