#VU63329 Out-of-bounds write in LibTIFF - CVE-2022-0891
Vulnerability identifier: #VU63329
Vulnerability risk: Medium
CVSSv4.0: 4.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-0891
CWE-ID:
CWE-787
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 compromise vulnerable system.
The vulnerability exists due to a boundary error when processing TIFF file in ExtractImageSection() function in tiffcrop.c. A remote attacker can create a specially crafted TIFF file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
LibTIFF: 4.3.0
External links
https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-0891.json
https://gitlab.com/freedesktop-sdk/mirrors/gitlab/libtiff/libtiff/-/commit/232282fd8f9c21eefe8d2d2b96cdbbb172fe7b7c
https://gitlab.com/libtiff/libtiff/-/issues/382
https://gitlab.com/libtiff/libtiff/-/issues/380
https://www.debian.org/security/2022/dsa-5108
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQ4E654ZYUUUQNBKYQFXNK2CV3CPWTM2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RNT2GFNRLOMKJ5KXM6JIHKBNBFDVZPD3/
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.
