CVE-2020-27830

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.

• CWE-476

• http://www.openwall.com/lists/oss-security/2020/12/08/1Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2020/12/08/4Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1919900Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/02/msg00018.htmlMailing List, Third 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 List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2020/12/08/4Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1919900Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/02/msg00018.htmlMailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210625-0004/Third Party Advisory
• https://www.debian.org/security/2021/dsa-4843Third Party Advisory

Published

May 13, 2021

Last Modified

Jun 17, 2026

Status

Modified

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