Gentoo update for libTIFF

1) Buffer underflow

EUVDB-ID: #VU29281

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2008-2327

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the LZWDecode(),  LZWDecodeCompat(), and  LZWDecodeVector() functions in tif_lzw.c in the LZW decoder in LibTIFF when processing TIFF files. A remote attacker can create a specially crafted TIFF image, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages.
media-libs/tiff to version: 3.8.2-r4

Vulnerable software versions

Gentoo Linux: All versions

CPE2.3

• cpe:2.3:o:gentoo:gentoo_linux:*:*:*:*:*:*:*:*

External links

https://security.gentoo.org/
https://security.gentoo.org/glsa/200809-07

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.