What is CVE-2011-1576?

CVE-2011-1576 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.7 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2011-1576 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-1576?

CVE-2011-1576 has a CVSS score of 5.7 out of 10, rated Medium severity. The vector string is AV:A/AC:M/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2011-1576?

No patch is currently available for CVE-2011-1576. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-1576 actively exploited?

CVE-2011-1576 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2011-1576

Medium

The Generic Receive Offload (GRO) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux 5 and 2.6.32 on Red Hat Enterprise Linux 6, as used in Red Hat Enterprise Virtualization (RHEV) Hypervisor and other products, allows remote attackers to cause a denial of service via crafted VLAN packets that are processed by the napi_reuse_skb function, leading to (1) a memory leak or (2) memory corruption, a different vulnerability than CVE-2011-1478.

Package Linux Kernel

Published 2011-08-31

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

5.7

out of 10

Medium

Attack Vector

Adjacent

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

None

Integrity

None

Availability

Vector string

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

Weakness type

CWE-119

CVE-2011-1576 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2011-1576 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
http://rhn.redhat.com/errata/RHSA-2011-0927.html
Red Hat
http://www.redhat.com/support/errata/RHSA-2011-1090.html

Vendor Advisory
Red Hat
http://www.redhat.com/support/errata/RHSA-2011-1106.html

Vendor Advisory
Securityfocus
http://www.securityfocus.com/bid/48907
Securitytracker
http://www.securitytracker.com/id?1025853
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=695173
Patch

Details

CVE ID CVE-2011-1576

Severity Medium

CVSS score 5.7 / 10

CVSS version 2.0

Published 2011-08-31

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-1576?

CVE-2011-1576 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.7 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2011-1576 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-1576?

CVE-2011-1576 has a CVSS score of 5.7 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:A/AC:M/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2011-1576?

No patch is currently available for CVE-2011-1576. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-1576 actively exploited?

No — CVE-2011-1576 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →