Description
By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper bound on memory allocation for unacknowledged frames, a malicious server can exhaust all available memory by flooding curl with rapid, sequential PING messages.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- curl / curl0b091328773c64e23f5c4739da74527093c6a5ab – 849317ff5c5a5e13f50ec3d001e46ddffa77d8a4
- curl / curl8.19.0 – 8.19.0
- curl / curl8.18.0 – 8.18.0
- curl / curl8.17.0 – 8.17.0
- curl / curl8.16.0 – 8.16.0
- curl / curl8.20.0 – 8.20.0
- curl / curl8.16.0 – 8.16.1
- curl / curl8.17.0 – 8.20.1
- haxx / curl8.16.0 – 8.21.0
Updated 45m ago · 8 sources