Ubuntu update for Libtasn1

1) Stack-based buffer overflow

EUVDB-ID: #VU1590

Risk: Low

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:Clear]

CVE-ID: CVE-2015-2806

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass security restrictions.

The weakness exists due to stack-based buffer overflow in asn1_der_decoding. A remote attacker can trigger memory corruption and have unspecified impact on the system.

Mitigation

Update the affected packages

Ubuntu 14.10:

libtasn1-6 4.0-2ubuntu0.1

Ubuntu 14.04 LTS:

libtasn1-6 3.4-3ubuntu0.2

Ubuntu 12.04 LTS:

libtasn1-3 2.10-1ubuntu1.3

Ubuntu 10.04 LTS:

libtasn1-3 2.4-1ubuntu0.3

Vulnerable software versions

Ubuntu: 12.04 - 14.04

CPE2.3

• cpe:2.3:o:canonical:ubuntu:12.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*

External links

https://www.ubuntu.com/usn/usn-2559-1/

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.