PT-2013-1255 · Strongswan+2 · Strongswan+2

Published 2013-08-28 · Updated 2024-06-15 · CVE-2013-5018

Positive Technologies (AI Summary)

CVSS v2.0

5.1

Medium

Base vector

AV:N/AC:H/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions strongSwan versions 4.1.11 through 5.0.4 strongSwan versions prior to 5.1.0

Description The issue affects the strongSwan package in Gentoo Linux, potentially leading to breaches of confidentiality, integrity, and availability of protected information. Exploitation can occur remotely. Specifically, the is asn1 function does not properly validate the return value of the asn1 length function, allowing remote attackers to cause a denial of service via a malformed XAuth username, EAP identity, or PEM encoded file.

Recommendations For strongSwan versions 4.1.11 through 5.0.4, update to version 5.1.0 or later to resolve the issue. For strongSwan versions prior to 5.1.0, update to version 5.1.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the is asn1 function and validating the input to the asn1 length function to minimize the risk of exploitation.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2015-09735

CVE-2013-5018

OPENSUSE-SU-2024:10579-1

SUSE-SU-2013_1866-1

SUSE-SU-2013_1866-2

SUSE-SU-2013_1866-3

Affected Products

Gentoo Linux

Suse

Strongswan

References · 40

• 🔥 https://lists.strongswan.org/pipermail/users/2013-July/009540.html · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2024:10579-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00022.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2013-5018 · Security Note
• https://bdu.fstec.ru/vul/2015-09735 · Security Note
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00021.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-5018 · Security Note
• https://ubuntu.com/security/CVE-2013-5018 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-5018 · Security Note
• http://strongswan.org/blog/2013/08/01/strongswan-5.1.0-released.html · Vendor Advisory
• http://strongswan.org/blog/2013/08/01/strongswan-denial-of-service-vulnerability-%28cve-2013-5018%29.html · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00050.html · Vendor Advisory
• http://secunia.com/advisories/54524 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2013-5018 · Vendor Advisory
• http://secunia.com/advisories/54315 · Vendor Advisory