CVE-2013-7470

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.

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

Potential Mitigations

• Mitigation of resource exhaustion attacks requires that the target system either:

• The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.

• The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/147.html
• https://cwe.mitre.org/data/definitions/227.html
• https://cwe.mitre.org/data/definitions/492.html

References

• 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
• https://www.arista.com/en/support/advisories-notices/security-advisories/7098-security-advisory-40
• 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
• https://www.arista.com/en/support/advisories-notices/security-advisories/7098-security-advisory-40