| Name | CVE-2018-7273 |
| Description | In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR. |
| 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) | jessie, jessie (lts) | 3.16.84-1 | vulnerable |
| stretch (security) | 4.9.320-2 | vulnerable | |
| stretch (lts), stretch | 4.9.320-3 | vulnerable | |
| 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, sid | 6.1.20-1 | fixed | |
| linux-4.9 (PTS) | jessie, jessie (lts) | 4.9.303-1~deb8u3 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | (unstable) | 4.15.4-1 | |||
| linux-4.9 | source | jessie | (unfixed) | end-of-life | ||
| linux-4.9 | source | (unstable) | (unfixed) |
[stretch] - linux <ignored> (Minor issue)
[jessie] - linux <ignored> (Minor issue)
[wheezy] - linux <ignored> (Minor issue)
https://lkml.org/lkml/2018/2/20/669