CVE-2022-43552
Publication date 21 December 2022
Last updated 24 July 2024
Ubuntu priority
A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| curl | ||
| 22.04 LTS jammy |
Fixed 7.81.0-1ubuntu1.7
|
|
| 20.04 LTS focal |
Fixed 7.68.0-1ubuntu2.15
|
|
| 18.04 LTS bionic |
Fixed 7.58.0-2ubuntu3.22
|
|
| 16.04 LTS xenial |
Fixed 7.47.0-1ubuntu2.19+esm7
|
|
| 14.04 LTS trusty |
Fixed 7.35.0-1ubuntu2.20+esm14
|
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Get Ubuntu ProSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.9 · Medium
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-5788-1
- curl vulnerabilities
- 5 January 2023
- USN-5894-1
- curl vulnerabilities
- 27 February 2023