#VU63795 Out-of-bounds read in LibTIFF - CVE-2022-22844
Published: May 30, 2022
Vulnerability identifier: #VU63795
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-22844
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LibTIFF
LibTIFF
Software vendor:
LibTIFF
LibTIFF
Description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a boundary condition in the _TIFFmemcpy() function in tif_unix.c in certain situations involving a custom tag and 0x0200 as the second word of the DE field. A remote attacker can pass a specially crafted file and perform a denial of service attack.
Remediation
Install updates from vendor's website.
External links
- https://gitlab.com/libtiff/libtiff/-/issues/355
- https://gitlab.com/libtiff/libtiff/-/merge_requests/287
- https://lists.debian.org/debian-lts-announce/2022/03/msg00001.html
- https://security.netapp.com/advisory/ntap-20220311-0002/
- https://www.debian.org/security/2022/dsa-5108
- https://bugzilla.redhat.com/show_bug.cgi?id=2042603