VulnerabilityModified
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.
MEDIUM 5.5EPSS 0.30%
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.30% probability · 23th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · debian/debian linux
- Source
- secalert@redhat.com
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.