CVE-2012-2127

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Summary

CVECVE-2012-2127
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-06-21 23:55:02 UTC
Updated2026-04-29 01:13:23 UTC
Descriptionfs/proc/root.c in the procfs implementation in the Linux kernel before 3.2 does not properly interact with CLONE_NEWPID clone system calls, which allows remote attackers to cause a denial of service (reference leak and memory consumption) by making many connections to a daemon that uses PID namespaces to isolate clients, as demonstrated by vsftpd.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-119 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 3.1.1 All All All
Operating System Linux Linux Kernel 3.1.2 All All All
Operating System Linux Linux Kernel 3.1.3 All All All
Operating System Linux Linux Kernel 3.1.4 All All All
Operating System Linux Linux Kernel 3.1.5 All All All
Operating System Linux Linux Kernel 3.1.6 All All All
Operating System Linux Linux Kernel 3.1.7 All All All
Operating System Linux Linux Kernel 3.1.8 All All All
Operating System Linux Linux Kernel 3.1.9 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Access Denied af854a3a-2127-422b-91ae-364da2661108 bugzilla.novell.com Exploit
procfs: fix a vfsmount longterm reference leak · torvalds/linux@905ad26 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Exploit, Patch
oss-security - Re: Re: CVE request: pid namespace leak in kernel 3.0 and 3.1 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
oss-security - Re: CVE request: pid namespace leak in kernel 3.0 and 3.1 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Exploit
USN-1594-1: Linux kernel (Oneiric backport) vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
USN-1607-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 ubuntu.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Index of /pub/linux/kernel/v3.x af854a3a-2127-422b-91ae-364da2661108 www.kernel.org
www.kernel.org/pub/linux/kernel/v3.x/patch-3.2.bz2 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Patch
815188 – (CVE-2012-2127) CVE-2012-2127 kernel: pid namespace leak in kernel 3.0 and 3.1 af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Exploit
Linux Kernel 'fs/proc/root.c' Remote Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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