CVE-2019-12625

ClamAV versions prior to 0.101.3 are susceptible to a zip bomb vulnerability where an unauthenticated attacker can cause a denial of service condition by sending crafted messages to an affected system.

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

• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00078.html
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00000.html
• https://blog.clamav.net/2019/08/clamav-01014-security-patch-release-has.html
• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00078.html
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00000.html
• https://blog.clamav.net/2019/08/clamav-01014-security-patch-release-has.html