CVE-2024-36031
Published: June 4, 2024Last modified: June 4, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: keys: Fix overwrite of key expiration on instantiation The expiry time of a key is unconditionally overwritten during instantiation, defaulting to turn it permanent. This causes a problem for DNS resolution as the expiration set by user-space is overwritten to TIME64_MAX, disabling further DNS updates. Fix this by restoring the condition that key_set_expiry is only called when the pre-parser sets a specific expiry.
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 |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| Stream | linux-lts | Not affected (6.1.33-r0) |
References
- https://git.kernel.org/stable/c/25777f3f4e1f371d16a594925f31e37ce07b6ec7
- https://git.kernel.org/stable/c/939a08bcd4334bad4b201e60bd0ae1f278d71d41
- https://git.kernel.org/stable/c/9da27fb65a14c18efd4473e2e82b76b53ba60252
- https://git.kernel.org/stable/c/ad2011ea787928b2accb5134f1e423b11fe80a8a
- https://git.kernel.org/stable/c/cc219cb8afbc40ec100c0de941047bb29373126a
- https://git.kernel.org/stable/c/e4519a016650e952ad9eb27937f8c447d5a4e06d
- https://git.kernel.org/stable/c/ed79b93f725cd0da39a265dc23d77add1527b9be
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html