CVE-2022-32206
Publication date 27 June 2022
Last updated 24 July 2024
Ubuntu priority
curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| curl | ||
| 22.04 LTS jammy |
Fixed 7.81.0-1ubuntu1.3
|
|
| 20.04 LTS focal |
Fixed 7.68.0-1ubuntu2.12
|
|
| 18.04 LTS bionic |
Fixed 7.58.0-2ubuntu3.19
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
Notes
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.5 · Medium
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-5495-1
- curl vulnerabilities
- 27 June 2022