Vulnerability identifier: #VU32426

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-3308

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GnuTLS
Universal components / Libraries / Libraries used by multiple products

Vendor: GnuTLS

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service or possibly have unspecified other impact via a crafted CRL distribution point.

Mitigation
Update to version 3.3.14.

Vulnerable software versions

GnuTLS: 3.3.0 - 3.3.13

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External links
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155101.html
http://www.gnutls.org/security.html#GNUTLS-SA-2015-4
http://www.openwall.com/lists/oss-security/2015/04/15/6
http://www.openwall.com/lists/oss-security/2015/04/16/6
http://www.securityfocus.com/bid/74188
http://www.securitytracker.com/id/1033774
http://www.ubuntu.com/usn/USN-2727-1
http://gitlab.com/gnutls/gnutls/commit/053ae65403216acdb0a4e78b25ad66ee9f444f02
http://gitlab.com/gnutls/gnutls/commit/d6972be33264ecc49a86cd0958209cd7363af1e9
http://security.gentoo.org/glsa/201506-03

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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.