Input validation error in libarchive (Alpine package)

Published: 2013-04-24

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2013-0211
CWE-ID	CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	libarchive (Alpine package) Operating systems & Components / Operating system package or component
Vendor	Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU33797

Risk: Medium

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:Green]

CVE-ID: CVE-2013-0211

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Integer signedness error in the archive_write_zip_data function in archive_write_set_format_zip.c in libarchive 3.1.2 and earlier, when running on 64-bit machines, allows context-dependent attackers to cause a denial of service (crash) via unspecified vectors, which triggers an improper conversion between unsigned and signed types, leading to a buffer overflow.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libarchive (Alpine package): 3.0.2-r0

CPE2.3

cpe:2.3:o:alpine:libarchive_alpine_package:3.0.2-r0:*:*:*:*:alpine_linux:*:2.1

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.