Description
The procfs code (proc_misc.c) in Linux 2.6.14.3 and other versions before 2.6.15 allows attackers to read sensitive kernel memory via unspecified vectors in which a signed value is added to an unsigned value.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | kernel-source-2.6.8 | 2.6.8-16sarge2 | DSA-1017-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +6 | 2.6.9-22.0.2.EL | RHSA-2006:0101 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- Linux Kernel < 2.6.14.6 - 'procfs' Kernel Memory Disclosure EDB-9363 · local · Aug 5, 2009 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- RHSA-2006:0101 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1017-1 kernel-source-2.6.8 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- 18788 third-party-advisory
- 19038 third-party-advisory
- http://linux.bkbits.net:8080/linux-2.6/cset%4043b562ae6hJGLWZA4TNf2k-RzXnVlQ
- MDKSA-2006:040 vendor-advisory
- RHSA-2006:0101 vendor-advisory
- oval:org.mitre.oval:def:11747 vdb-entry signature
- linux-procfs-information-disclosure(23811) vdb-entry
- 16284 vdb-entry
- http://linux.bkbits.net:8080/linux-2.6/gnupatch%4043b562ae6hJGLWZA4TNf2k-RzXnVlQ
- SUSE-SA:2006:006 vendor-advisory
- FLSA:157459-4 vendor-advisory
- 20051223 linux procfs vulnerablity mailing-list
- 18510 third-party-advisory
- SUSE-SA:2006:012 vendor-advisory
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8b90db0df7187a01fb7177f1f812123138f562cf
- 18351 third-party-advisory
- 18216 third-party-advisory
- http://www.redhat.com/archives/fedora-announce-list/2006-January/msg00014.html
- DSA-1017 vendor-advisory
- USN-244-1 vendor-advisory
- 18527 third-party-advisory
- 19374 third-party-advisory