Vulnerabilities > CVE-2020-25669 - Use After Free vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
- http://www.openwall.com/lists/oss-security/2020/11/20/5
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
- http://www.openwall.com/lists/oss-security/2020/11/05/2
- https://security.netapp.com/advisory/ntap-20210702-0006/
- https://www.openwall.com/lists/oss-security/2020/11/05/2%2C
- https://www.openwall.com/lists/oss-security/2020/11/20/5%2C