Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.9.14 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/12/08/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/08/4Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1919900Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210625-0004/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/08/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/08/4Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1919900Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210625-0004/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843Third Party Advisory
FAQ
What is CVE-2020-27830?
CVE-2020-27830 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 de...
How severe is CVE-2020-27830?
CVE-2020-27830 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-27830?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.