Path traversal in GNOME librsvg

1) Path traversal

EUVDB-ID: #VU78756

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-38633

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the URL decoder. A remote attacker can pass specially crafted URL to the library and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

librsvg: 2.56.0 - 2.56.90

External links

http://gitlab.gnome.org/GNOME/librsvg/-/releases/2.56.3
http://bugzilla.suse.com/show_bug.cgi?id=1213502
http://gitlab.gnome.org/GNOME/librsvg/-/issues/996
http://www.openwall.com/lists/oss-security/2023/07/27/1
http://seclists.org/fulldisclosure/2023/Jul/43

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.