Name | CVE-2021-4202 |
Description | A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
References | DLA-2940-1, DSA-5096-1 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
linux (PTS) | bullseye | 5.10.223-1 | fixed |
bullseye (security) | 5.10.234-1 | fixed | |
bookworm | 6.1.129-1 | fixed | |
bookworm (security) | 6.1.135-1 | fixed | |
trixie | 6.12.22-1 | fixed | |
sid | 6.12.25-1 | 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 | 4.9.303-1 | DLA-2940-1 | ||
linux | source | buster | 4.19.232-1 | DSA-5096-1 | ||
linux | source | bullseye | 5.10.84-1 | |||
linux | source | (unstable) | 5.15.5-1 | unimportant |
CONFIG_NFC_NCI not enabled in Debian