CVE-2020-27830

Description

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.

References

Link	Tags
http://www.openwall.com/lists/oss-security/2020/12/08/1	third party advisory mailing list
http://www.openwall.com/lists/oss-security/2020/12/08/4	third party advisory mailing list
https://www.debian.org/security/2021/dsa-4843	third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html	third party advisory mailing list
https://bugzilla.redhat.com/show_bug.cgi?id=1919900	issue tracking third party advisory patch
https://security.netapp.com/advisory/ntap-20210625-0004/	third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-27830?: CVE-2020-27830 has been scored as a medium severity vulnerability.
How to fix CVE-2020-27830?: To fix CVE-2020-27830, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-27830 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-27830 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-27830?: CVE-2020-27830 affects n/a kernel.

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Description

Category

CWE-476 – NULL Pointer Dereference

References

Frequently Asked Questions