kernel: af_packet: infoleak
Published May 24, 2012
5.5
MEDIUMCVSS 3.1
EPSS 0.45%
Description
net/packet/af_packet.c in the Linux kernel before 2.6.39.3 does not properly restrict user-space access to certain packet data structures associated with VLAN Tag Control Information, which allows local users to obtain potentially sensitive information via a crafted application.
Affected products
No data.
- < 2.6.39.3
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-131.17.1.el6
Fixed · RHSA-2011:1350
Red Hat Enterprise MRG 2
kernel-rt-0:2.6.33.9-rt31.79.el6rt
Fixed · RHSA-2012:0010
Red Hat Enterprise Linux 4
kernel
Not affected
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-131.17.1.el6 | Fixed | RHSA-2011:1350 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:2.6.33.9-rt31.79.el6rt | Fixed | RHSA-2012:0010 |
| Red Hat Enterprise Linux 4 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as they did not backport the upstream commit 393e52e3 that introduced this flaw. This has been addressed in Red Hat Enterprise Linux 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1350.html and https://rhn.redhat.com/errata/RHSA-2012-0010.html.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:P/I:N/A:N
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 | 0.45% (0.00448) | 36.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.45% (0.00448) | 35.40th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00058) | 15.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00079) | 36.04th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.08% (0.00079) | 34.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00079) | 32.42th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.02% (0.01018) | 40.16th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.18% (0.01183) | 61.06th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (8)
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3 x_refsource_CONFIRMBroken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13fcb7bd322164c67926ffe272846d4860196dc6 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2011/08/03/7 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-2898 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=728023 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/13fcb7bd322164c67926ffe272846d4860196dc6 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2011-2898
- https://www.cve.org/CVERecord?id=CVE-2011-2898
| Link | Providers | Tags |
|---|---|---|
| http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3 | x_refsource_CONFIRMBroken Link | |
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13fcb7bd322164c67926ffe272846d4860196dc6 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2011/08/03/7 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2011-2898 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=728023 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/torvalds/linux/commit/13fcb7bd322164c67926ffe272846d4860196dc6 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-2898 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-2898 |
Change history (0)
No recorded changes yet.