| Name | CVE-2015-8569 |
| Description | The (1) pptp_bind and (2) pptp_connect functions in drivers/net/ppp/pptp.c in the Linux kernel through 4.3.3 do not verify an address length, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted application. |
| 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 | DSA-3434-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | buster | 4.19.249-2 | fixed |
| buster (security) | 4.19.282-1 | fixed | |
| bullseye | 5.10.178-3 | fixed | |
| bullseye (security) | 5.10.179-1 | fixed | |
| bookworm, sid | 6.1.27-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | wheezy | 3.2.73-2+deb7u2 | DSA-3434-1 | ||
| linux | source | jessie | 3.16.7-ckt20-1+deb8u2 | DSA-3434-1 | ||
| linux | source | (unstable) | 4.3.3-3 | |||
| linux-2.6 | source | squeeze | (not affected) | |||
| linux-2.6 | source | (unstable) | (unfixed) |
[squeeze] - linux-2.6 <not-affected> (Vulnerable code introduced later)
https://www.openwall.com/lists/oss-security/2015/12/15/7
Upstream commit: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=09ccfd238e5a0e670d8178cf50180ea81ae09ae1 (v4.4-rc6)
pptp_{connect,bind} introduced in https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=00959ade36acadc00e757f87060bf6e4501d545f (v2.6.37-rc1)
https://lkml.org/lkml/2015/12/14/252