CVE-2011-1576

Severity: medium (CVSS 5.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-08-31 · updated 2026-06-16
Weakness: CWE-119

Description

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.

Affected products

Linux kernel: 2.6.18
Red Hat Enterprise Linux: 5, 6.0
RedHat Enterprise Virtualization Hypervisor: all versions

References

http://rhn.redhat.com/errata/RHSA-2011-0927.html
http://www.redhat.com/support/errata/RHSA-2011-1090.html
http://www.redhat.com/support/errata/RHSA-2011-1106.html
http://www.securityfocus.com/bid/48907
http://www.securitytracker.com/id?1025853
https://bugzilla.redhat.com/show_bug.cgi?id=695173
http://rhn.redhat.com/errata/RHSA-2011-0927.html
http://www.redhat.com/support/errata/RHSA-2011-1090.html
http://www.redhat.com/support/errata/RHSA-2011-1106.html
http://www.securityfocus.com/bid/48907
http://www.securitytracker.com/id?1025853
https://bugzilla.redhat.com/show_bug.cgi?id=695173

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