Heap-based buffer overflow in unzip (Alpine package)

Published: 2018-08-20

Risk	High
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2018-1000035
CWE-ID	CWE-122
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	unzip (Alpine package) Operating systems & Components / Operating system package or component
Vendor	Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU13614

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-1000035

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The weakness exists due to heap-based buffer overflow in the processing of password-protected archives. A remote attacker can trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

unzip (Alpine package): 6.0-r2

CPE2.3

cpe:2.3:o:alpine:unzip_alpine_package:6.0-r2:*:*:*:*:alpine_linux:*:3.4

External links

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.