Vulnerabilities > CVE-2021-3753
Attack vector
LOCAL Attack complexity
HIGH Privileges required
LOW Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.
Vulnerable Configurations
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1999589
- https://bugzilla.redhat.com/show_bug.cgi?id=1999589
- https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7
- https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7
- https://security.netapp.com/advisory/ntap-20221028-0003/
- https://security.netapp.com/advisory/ntap-20221028-0003/
- https://www.openwall.com/lists/oss-security/2021/09/01/4
- https://www.openwall.com/lists/oss-security/2021/09/01/4