Input validation error in Linux kernel

1) Input validation error

EUVDB-ID: #VU43047

Risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-0343

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

The ipv6_create_tempaddr function in net/ipv6/addrconf.c in the Linux kernel through 3.8 does not properly handle problems with the generation of IPv6 temporary addresses, which allows remote attackers to cause a denial of service (excessive retries and address-generation outage), and consequently obtain sensitive information, via ICMPv6 Router Advertisement (RA) messages.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.0 - 3.7.10

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:3.0.44:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.1.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.2.30:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.3.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.4.24:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.5.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.6.11:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.7.10:*:*:*:*:*:*:*

External links

http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html
http://openwall.com/lists/oss-security/2012/12/05/4
http://openwall.com/lists/oss-security/2013/01/16/7
http://openwall.com/lists/oss-security/2013/01/21/11
http://rhn.redhat.com/errata/RHSA-2013-1449.html
http://rhn.redhat.com/errata/RHSA-2013-1490.html
http://rhn.redhat.com/errata/RHSA-2013-1645.html
http://www.openwall.com/lists/oss-security/2013/02/22/6
http://www.ubuntu.com/usn/USN-1976-1
http://www.ubuntu.com/usn/USN-1977-1
http://www.ubuntu.com/usn/USN-2019-1
http://www.ubuntu.com/usn/USN-2020-1
http://www.ubuntu.com/usn/USN-2021-1
http://www.ubuntu.com/usn/USN-2022-1
http://www.ubuntu.com/usn/USN-2023-1
http://www.ubuntu.com/usn/USN-2024-1
http://www.ubuntu.com/usn/USN-2038-1
http://www.ubuntu.com/usn/USN-2039-1
http://www.ubuntu.com/usn/USN-2050-1
http://bugzilla.redhat.com/show_bug.cgi?id=914664

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.