CVE-2022-48564

read_ints in plistlib.py in Python through 3.9.1 is vulnerable to a potential DoS attack via CPU and RAM exhaustion when processing malformed Apple Property List files in binary format.

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://bugs.python.org/issue42103
• https://lists.debian.org/debian-lts-announce/2023/10/msg00017.html
• https://security.netapp.com/advisory/ntap-20230929-0009/
• https://bugs.python.org/issue42103
• https://lists.debian.org/debian-lts-announce/2023/10/msg00017.html
• https://security.netapp.com/advisory/ntap-20230929-0009/