Name | CVE-2023-4194 |
Description | A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate. |
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-3623-1, DSA-5480-1, DSA-5492-1, ELA-991-1 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
linux (PTS) | jessie, jessie (lts) | 3.16.84-1 | vulnerable |
stretch (security) | 4.9.320-2 | vulnerable | |
stretch (lts), stretch | 4.9.320-3 | vulnerable | |
buster (security), buster, buster (lts) | 4.19.316-1 | vulnerable | |
bullseye | 5.10.223-1 | fixed | |
bullseye (security) | 5.10.226-1 | fixed | |
bookworm | 6.1.106-3 | fixed | |
bookworm (security) | 6.1.112-1 | fixed | |
trixie | 6.10.11-1 | fixed | |
sid | 6.11.2-1 | fixed | |
linux-5.10 (PTS) | jessie, jessie (lts) | 5.10.218-1~deb8u1 | fixed |
stretch (lts), stretch | 5.10.218-1~deb9u1 | fixed | |
buster (security), buster, buster (lts) | 5.10.218-1~deb10u1 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
linux | source | jessie | (unfixed) | end-of-life | ||
linux | source | stretch | (unfixed) | end-of-life | ||
linux | source | buster | (unfixed) | end-of-life | ||
linux | source | bullseye | 5.10.191-1 | DSA-5480-1 | ||
linux | source | bookworm | 6.1.52-1 | DSA-5492-1 | ||
linux | source | (unstable) | 6.4.11-1 | |||
linux-5.10 | source | jessie | 5.10.197-1~deb8u1 | ELA-991-1 | ||
linux-5.10 | source | stretch | 5.10.197-1~deb9u1 | ELA-991-1 | ||
linux-5.10 | source | buster | 5.10.197-1~deb10u1 | DLA-3623-1 |
https://git.kernel.org/linus/9bc3047374d5bec163e83e743709e23753376f0c (6.5-rc5)
https://git.kernel.org/linus/5c9241f3ceab3257abe2923a59950db0dc8bb737 (6.5-rc5)