CVE-2023-42364
Published: 27 November 2023
A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.
Notes
| Author | Note |
|---|---|
| eslerm | CVE-2023-42364 and CVE-2023-42365 share a patch, see both bugs upstream's patch contains a regression alpine has a patch for the regression upstream introduced |
| mdeslaur | looks like the third patch below fixes the regression |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
busybox Launchpad, Ubuntu, Debian |
bionic |
Needed
|
| focal |
Needed
|
|
| jammy |
Needed
|
|
| lunar |
Ignored
(end of life, was deferred [2024-06-17])
|
|
| mantic |
Ignored
(end of life, was deferred [2024-06-17])
|
|
| noble |
Needed
|
|
| trusty |
Needed
|
|
| upstream |
Needs triage
|
|
| xenial |
Needed
|
|
|
Patches: upstream: https://git.busybox.net/busybox/commit/editors/awk.c?id=0256e00a9d077588bd3a39f5a1ef7e2eaa2911e4 upstream: https://git.busybox.net/busybox/commit/editors/awk.c?id=fb08d43d44d1fea1f741fafb9aa7e1958a5f69aa upstream: https://git.busybox.net/busybox/commit/editors/awk.c?id=38335df9e9f45378c3407defd38b5b610578bdda |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |