Vulnerability identifier: #VU63326

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0561

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibTIFF
Universal components / Libraries / Libraries used by multiple products

Vendor: LibTIFF

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the memcpy() function within TIFFFetchStripThing() in tif_dirread.c. A remote attacker can trick victim to open specially crafted TIFF file and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LibTIFF: 3.9.0 - 4.3.0

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External links
http://gitlab.com/freedesktop-sdk/mirrors/gitlab/libtiff/libtiff/-/commit/eecb0712f4c3a5b449f70c57988260a667ddbdef
http://gitlab.com/libtiff/libtiff/-/issues/362
http://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-0561.json
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DZEHZ35XVO2VBZ4HHCMM6J6TQIDSBQOM/
http://lists.debian.org/debian-lts-announce/2022/03/msg00001.html
http://security.netapp.com/advisory/ntap-20220318-0001/
http://www.debian.org/security/2022/dsa-5108

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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.