CVE-2022-32206
Published: 27 June 2022
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in 7.57.0 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
curl Launchpad, Ubuntu, Debian |
bionic |
Released
(7.58.0-2ubuntu3.19)
|
| focal |
Released
(7.68.0-1ubuntu2.12)
|
|
| impish |
Released
(7.74.0-1.3ubuntu2.3)
|
|
| jammy |
Released
(7.81.0-1ubuntu1.3)
|
|
| kinetic |
Released
(7.84.0-1)
|
|
| trusty |
Not vulnerable
|
|
| upstream |
Released
(7.84.0)
|
|
| xenial |
Not vulnerable
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| 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 |