CVE-2022-36227
Published: 22 November 2022
In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: "In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution."
Notes
| Author | Note |
|---|---|
| mdeslaur | most likely a denial of service only |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libarchive Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needed
|
|
| jammy |
Needed
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Not vulnerable
(3.6.2-1ubuntu1)
|
|
| mantic |
Not vulnerable
(3.6.2-1ubuntu1)
|
|
| trusty |
Needed
|
|
| upstream |
Released
(3.6.2)
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://github.com/libarchive/libarchive/commit/bff38efe8c110469c5080d387bec62a6ca15b1a5 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |