Resource exhaustion in Linux kernel

1) Resource exhaustion

EUVDB-ID: #VU31092

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-7470

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

cipso_v4_validate in include/net/cipso_ipv4.h in the Linux kernel before 3.11.7, when CONFIG_NETLABEL is disabled, allows attackers to cause a denial of service (infinite loop and crash), as demonstrated by icmpsic, a different vulnerability than CVE-2013-0310.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.11.1 - 3.11.6

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:3.11.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.11.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.11.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.11.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.11.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.11.6:*:*:*:*:*:*:*

External links

https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.7
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f2e5ddcc0d12f9c4c7b254358ad245c9dddce13b
https://github.com/torvalds/linux/commit/f2e5ddcc0d12f9c4c7b254358ad245c9dddce13b
https://support.f5.com/csp/article/K21914362

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.