Name | CVE-2021-22555 |
Description | A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
linux (PTS) | stretch | 4.9.228-1 | vulnerable |
stretch (security) | 4.9.303-1 | fixed | |
buster | 4.19.235-1 | fixed | |
buster (security) | 4.19.232-1 | fixed | |
bullseye | 5.10.106-1 | fixed | |
bullseye (security) | 5.10.113-1 | fixed | |
bookworm | 5.17.3-1 | fixed | |
sid | 5.17.6-1 | 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 | 4.9.272-1 | |||
linux | source | buster | 4.19.194-1 | |||
linux | source | (unstable) | 5.10.38-1 |
https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528
https://google.github.io/security-research/pocs/linux/cve-2021-22555/writeup.html