What is CVE-2011-1593?

CVE-2011-1593 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10, classified as a Integer Overflow flaw (CWE-190). CVE-2011-1593 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-1593?

CVE-2011-1593 has a CVSS score of 4.9 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2011-1593?

No patch is currently available for CVE-2011-1593. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-1593 actively exploited?

CVE-2011-1593 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2011-1593

Medium

Multiple integer overflows in the next_pidmap function in kernel/pid.c in the Linux kernel before 2.6.38.4 allow local users to cause a denial of service (system crash) via a crafted (1) getdents or (2) readdir system call.

Package Linux Kernel

Published 2011-05-03

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.9

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

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

Weakness type

CWE-190

CVE-2011-1593 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2011-1593 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Groups
http://groups.google.com/group/fa.linux.kernel/msg/4a28ecb7f755a88d?dmode=source

Exploit Third Party Advisory
Red Hat
http://rhn.redhat.com/errata/RHSA-2011-0927.html

Third Party Advisory
Secunia
http://secunia.com/advisories/44164

Third Party Advisory Vendor Advisory
Securitytracker
http://securitytracker.com/id?1025420

Third Party Advisory VDB Entry
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.4

Release Notes Vendor Advisory
Securityfocus
http://www.securityfocus.com/bid/47497

Third Party Advisory VDB Entry
Ubuntu Security
http://www.ubuntu.com/usn/USN-1146-1

Third Party Advisory
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/66876

Third Party Advisory VDB Entry
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c78193e9c7bcbf25b8237ad0dec82f805c4ea69b
Patch
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d8bdc59f215e62098bc5b4256fd9928bf27053a1
Patch
Kernel patch commit
http://openwall.com/lists/oss-security/2011/04/19/1
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2011-1593

Severity Medium

CVSS score 4.9 / 10

CVSS version 2.0

Published 2011-05-03

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-1593?

CVE-2011-1593 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10 , classified as an Integer Overflow flaw (CWE-190) . CVE-2011-1593 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-1593?

CVE-2011-1593 has a CVSS score of 4.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2011-1593?

No patch is currently available for CVE-2011-1593. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-1593 actively exploited?

No — CVE-2011-1593 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →