Name | 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. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
References | DLA-2557-1, DSA-4843-1 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
linux (PTS) | buster | 4.19.249-2 | fixed |
buster (security) | 4.19.269-1 | fixed | |
bullseye | 5.10.158-2 | fixed | |
bullseye (security) | 5.10.162-1 | fixed | |
bookworm | 6.1.15-1 | fixed | |
sid | 6.1.20-1 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
linux | source | stretch | (not affected) | |||
linux | source | buster | 4.19.171-2 | DSA-4843-1 | ||
linux | source | (unstable) | 5.9.15-1 | |||
linux-4.19 | source | stretch | 4.19.171-2~deb9u1 | DLA-2557-1 |
[stretch] - linux <not-affected> (Vulnerability introduced later)
https://www.openwall.com/lists/oss-security/2020/12/07/1
https://git.kernel.org/linus/f0992098cadb4c9c6a00703b66cafe604e178fea