Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.4.242 |
| Debian | Debian Linux | 9.0 |
| Netapp | Cloud Backup | - |
| Netapp | Solidfire \& Hci Management Node | - |
| Netapp | Solidfire Baseboard Management Controller Firmware | - |
| Netapp | Solidfire Baseboard Management Controller | - |
| Netapp | H410C Firmware | - |
| Netapp | H410C | - |
| Netapp | H300S Firmware | - |
| Netapp | H300S | - |
| Netapp | H500S Firmware | - |
| Netapp | H500S | - |
| Netapp | H700S Firmware | - |
| Netapp | H700S | - |
| Netapp | H300E Firmware | - |
| Netapp | H300E | - |
| Netapp | H500E Firmware | - |
| Netapp | H500E | - |
| Netapp | H700E Firmware | - |
| Netapp | H700E | - |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/10/30/1ExploitMailing ListPatch
- http://www.openwall.com/lists/oss-security/2020/11/04/3ExploitMailing ListPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bMailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210702-0005/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/10/30/1%2C
- https://www.openwall.com/lists/oss-security/2020/11/04/3%2C
- http://www.openwall.com/lists/oss-security/2020/10/30/1ExploitMailing ListPatch
- http://www.openwall.com/lists/oss-security/2020/11/04/3ExploitMailing ListPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bMailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-25668?
CVE-2020-25668 is a vulnerability with a CVSS score of 7.0 (HIGH). 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.
How severe is CVE-2020-25668?
CVE-2020-25668 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25668?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Netapp Cloud Backup, Netapp Solidfire \& Hci Management Node, Netapp Solidfire Baseboard Management Controller Firmware.