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CVE-2011-1478

20
FAUCET Score

CVE-2011-1478 describes a NULL pointer dereference vulnerability in the Linux kernel's Generic Receive Offload (GRO) implementation, specifically within the napi_reuse_skb function. This flaw, affecting Linux kernels prior to version 2.6.38, could allow a remote attacker to cause a denial of service by sending a malformed VLAN frame. The vulnerability has a CVSS score of 5.7, indicating a medium severity, with an adjacent network attack vector and medium attack complexity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.7MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
61.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 96th percentile among its peer group of 1,749 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-238.9.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-71.24.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.75.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 1Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2011-1478Moderate

kernel: gro: reset dev and skb_iff on skb reuse

Feb 2, 2011

References

git.kernel.org
git.kernel.org
mirror.anl.gov / pub/linux/kernel/v2.6/ChangeLog-2.6.38
Broken Link
openwall.com / lists/oss-security/2011/03/28/1
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/46397
Third Party Advisory
securityreason.com / securityalert/8480
Third Party Advisory
securityfocus.com / archive/1/520102/100/0/threaded
Third Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2011-0012.html
Third Party Advisory