kernel: net: Fix memory leak/corruption on VLAN GRO_DROP
Published Aug 31, 2011
5.7
MEDIUMCVSS 2.0
EPSS 0.99%
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
No data.
Configuration 1
- 2.6.18
- 5
Configuration 2
- n/a
- 6.0
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-238.19.1.el5
Fixed · RHSA-2011:0927
Red Hat Enterprise Linux 6
kernel-0:2.6.32-131.12.1.el6
Fixed · RHSA-2011:1189
Red Hat Enterprise Linux 6.0 EUS - Server Only
kernel-0:2.6.32-71.34.1.el6
Fixed · RHSA-2011:1106
Red Hat Enterprise MRG 2
kernel-rt-0:2.6.33.9-rt31.75.el6rt
Fixed · RHSA-2011:1253
Red Hat Enterprise MRG 1
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-238.19.1.el5 | Fixed | RHSA-2011:0927 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-131.12.1.el6 | Fixed | RHSA-2011:1189 |
| Red Hat Enterprise Linux 6.0 EUS - Server Only | kernel-0:2.6.32-71.34.1.el6 | Fixed | RHSA-2011:1106 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:2.6.33.9-rt31.75.el6rt | Fixed | RHSA-2011:1253 |
| Red Hat Enterprise MRG 1 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not support Generic Receive Offload (GRO). This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html and https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:A/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.99% (0.00994) | 61.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.00% (0.01003) | 58.22th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.78% (0.00777) | 71.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.89% (0.00888) | 83.28th | v3 (v2023.03.01) |
| Mar 19, 2024 | 0.89% (0.00888) | 82.19th | v3 (v2023.03.01) |
| Mar 31, 2023 | 0.89% (0.00888) | 80.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.82% (0.00822) | 79.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.32% (0.01319) | 70.74th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.54% (0.01537) | 73.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (9)
- http://rhn.redhat.com/errata/RHSA-2011-0927.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2011-1090.html vendor-advisoryx_refsource_REDHATVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2011-1106.html vendor-advisoryx_refsource_REDHATVendor Advisory
- http://www.securityfocus.com/bid/48907 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025853 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2011-1576 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=695173 x_refsource_CONFIRMPatchIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-1576
- https://www.cve.org/CVERecord?id=CVE-2011-1576
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2011-0927.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.redhat.com/support/errata/RHSA-2011-1090.html | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| http://www.redhat.com/support/errata/RHSA-2011-1106.html | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| http://www.securityfocus.com/bid/48907 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1025853 | vdb-entryx_refsource_SECTRACK | |
| https://access.redhat.com/security/cve/CVE-2011-1576 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=695173 | x_refsource_CONFIRMPatchIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-1576 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-1576 |
Change history (0)
No recorded changes yet.