#VU83033 Input validation error in squashfs-tools - CVE-2015-4646

Vulnerability identifier: #VU83033

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-4646

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
squashfs-tools
Other software / Other software solutions

Vendor: plougher

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in unsquash-1.c, unsquash-2.c, unsquash-3.c, and unsquash-4.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

squashfs-tools: 3.1 - 3.2

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External links
https://seclists.org/oss-sec/2015/q2/756
https://www.securityfocus.com/bid/75272
https://github.com/plougher/squashfs-tools/commit/f95864afe8833fe3ad782d714b41378e860977b1
https://security.gentoo.org/glsa/201701-73

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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.