CVEvulnerability
CVE-2020-27830
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-05-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-476
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.
Affected configurations
• linux linux kernel (< 5.9.14)
• debian debian linux 9.0
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- http://www.openwall.com/lists/oss-security/2020/12/08/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/08/4 Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1919900 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210625-0004/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/08/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/08/4 Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1919900 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210625-0004/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843 Third Party Advisory