What is CVE-2009-2691?

CVE-2009-2691 is a Low severity Linux kernel vulnerability with a CVSS score of 2.1 out of 10, classified as a Information Exposure flaw (CWE-200). CVE-2009-2691 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-2691?

CVE-2009-2691 has a CVSS score of 2.1 out of 10, rated Low severity. The vector string is AV:L/AC:L/Au:N/C:P/I:N/A:N.

Is there a patch available for CVE-2009-2691?

No patch is currently available for CVE-2009-2691. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2009-2691 actively exploited?

CVE-2009-2691 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Information Exposure (CWE-200)?

The product exposes sensitive information to an actor not authorised to see it. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/200.html

CVE-2009-2691

Low

The mm_for_maps function in fs/proc/base.c in the Linux kernel 2.6.30.4 and earlier allows local users to read (1) maps and (2) smaps files under proc/ via vectors related to ELF loading, a setuid process, and a race condition.

Package Linux Kernel

Published 2009-08-14

Last modified 2026-04-23

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

2.1

out of 10

Low

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

None

Vector string

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

Weakness type

CWE-200

CVE-2009-2691 is a Information Exposure vulnerability

What is Information Exposure?

The product exposes sensitive information to an actor not authorised to see it. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2009-2691 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lkml
http://lkml.org/lkml/2009/6/23/652
Secunia
http://secunia.com/advisories/36265

Vendor Advisory
Secunia
http://secunia.com/advisories/36501
Debian Security
http://www.debian.org/security/2010/dsa-2005
Openwall
http://www.openwall.com/lists/oss-security/2009/08/11/1
Securityfocus
http://www.securityfocus.com/bid/36019
Vupen
http://www.vupen.com/english/advisories/2009/2246

Vendor Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=516171
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/52401
Red Hat
https://rhn.redhat.com/errata/RHSA-2009-1540.html
Red Hat
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=00f89d218523b9bf6b522349c039d5ac80aa536d
Patch
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13f0feafa6b8aead57a2a328e2fca6a5828bf286
Patch
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=704b836cbf19e885f8366bccb2e4b0474346c02d
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2009-2691

Severity Low

CVSS score 2.1 / 10

CVSS version 2.0

Published 2009-08-14

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-2691?

CVE-2009-2691 is a Low severity Linux kernel vulnerability with a CVSS score of 2.1 out of 10 , classified as an Information Exposure flaw (CWE-200) . CVE-2009-2691 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-2691?

CVE-2009-2691 has a CVSS score of 2.1 out of 10, rated Low severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:P/I:N/A:N.
Is there a patch available for CVE-2009-2691?

No patch is currently available for CVE-2009-2691. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2009-2691 actively exploited?

No — CVE-2009-2691 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Information Exposure (CWE-200)?

The product exposes sensitive information to an actor not authorised to see it. View CWE-200 on MITRE CWE →