Vulnerabilities > CVE-2020-27830
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.
Vulnerable Configurations
References
- http://www.openwall.com/lists/oss-security/2020/12/08/1
- http://www.openwall.com/lists/oss-security/2020/12/08/1
- http://www.openwall.com/lists/oss-security/2020/12/08/4
- http://www.openwall.com/lists/oss-security/2020/12/08/4
- https://bugzilla.redhat.com/show_bug.cgi?id=1919900
- https://bugzilla.redhat.com/show_bug.cgi?id=1919900
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
- https://security.netapp.com/advisory/ntap-20210625-0004/
- https://security.netapp.com/advisory/ntap-20210625-0004/
- https://www.debian.org/security/2021/dsa-4843
- https://www.debian.org/security/2021/dsa-4843