Heap-based buffer overflow in zziplib.sourceforge.net ZZIPlib

1) Heap-based buffer overflow

EUVDB-ID: #VU33257

Risk: Medium

CVSSv3.1: 4.8 [AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5975

CWE-ID: CWE-122 - Heap-based Buffer Overflow

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 Heap-based buffer overflow in the __zzip_get64 function in fetch.c in zziplib 0.13.62. A remote attacker can use a crafted ZIP file. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update to version 0.13.63.

Vulnerable software versions

ZZIPlib: 0.13.62

External links

http://www.debian.org/security/2017/dsa-3878
http://www.openwall.com/lists/oss-security/2017/02/14/3
http://www.securityfocus.com/bid/96268
http://blogs.gentoo.org/ago/2017/02/09/zziplib-heap-based-buffer-overflow-in-__zzip_get64-fetch-c/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.