CURL-CVE-2023-23916
Dashboard / Vulnerabilities / CURL-CVE-2023-23916
Summary: HTTP multi-header compression denial of service
Details: curl supports "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was capped, but the cap was implemented on a per-header basis allowing a malicious server to insert a virtually unlimited number of compression steps by using many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.
References:
Affected packages
Package
Name:
Purl:
Affected ranges
Type: SEMVER
Events:
Introduced- 7.57.0
Fixed -7.88.0
Affected versions
7.87.0
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
