CVE-2020-25668
Published: May 26, 2021Last modified: October 6, 2023
Description
A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7 |
| Attack Vector | LOCAL |
| Attack complexity | HIGH |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.50-r0) |
| Stream | linux-lts | Not affected (6.1.50-r0) |
References
- http://www.openwall.com/lists/oss-security/2020/10/30/1
- http://www.openwall.com/lists/oss-security/2020/11/04/3
- https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C
- https://bugzilla.redhat.com/show_bug.cgi?id=1893287,
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
- https://security.netapp.com/advisory/ntap-20210702-0005/
- https://www.openwall.com/lists/oss-security/2020/10/30/1%2C
- https://www.openwall.com/lists/oss-security/2020/10/30/1,
- https://www.openwall.com/lists/oss-security/2020/11/04/3%2C
- https://www.openwall.com/lists/oss-security/2020/11/04/3,