Arch Linux update for lib32-libtiff

Published: 2017-07-18

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2015-7554 CVE-2016-10095
CWE-ID	CWE-787 CWE-121
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Arch Linux Operating systems & Components / Operating system
Vendor	Arch Linux

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU3801

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-2015-7554

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error in _TIFFVGetField() function in tif_dir.c in libtiff 4.0.6. A remote attacker can create a specially crafted TIFF image, trick the victim into opening it and execute arbitrary code on the target system.

Mitigation

Update the affected package lib32-libtiff to version 4.0.8-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3

cpe:2.3:o:arch_linux:arch_linux:*:*:*:*:*:*:*:*

External links

https://security.archlinux.org/advisory/ASA-201707-18

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.

2) Stack-based buffer overflow

EUVDB-ID: #VU7402

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-10095

CWE-ID: CWE-121 - Stack-based buffer overflow