kernel: buffer overflow in doi_def->tags[] array
Published Jul 27, 2019
9.8
CRITICALCVSS 3.0
EPSS 2.98%
Description
In the Linux kernel before 2.6.20, there is an off-by-one bug in net/netlabel/netlabel_cipso_v4.c where it is possible to overflow the doi_def->tags[] array.
Affected products
No data.
- < 2.6.20
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
No shipping versions of the kernel are affected.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.98% (0.02976) | 86.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.98% (0.02976) | 85.45th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.80% (0.00800) | 71.83th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.31% (0.02314) | 74.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.80% (0.00800) | 72.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.94% (0.00937) | 83.74th | v3 (v2023.03.01) |
| Jul 20, 2024 | 0.94% (0.00937) | 83.24th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.78% (0.00775) | 80.75th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.78% (0.00775) | 78.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | 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 (9)
- https://access.redhat.com/security/cve/CVE-2007-6762 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1735620 Issue Tracking
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a2f11c227bdf292b3a2900ad04139d301b56ac4 x_refsource_MISCPatchVendor Advisory
- https://github.com/torvalds/linux/commit/2a2f11c227bdf292b3a2900ad04139d301b56ac4 x_refsource_MISCPatchThird Party Advisory
- https://mirrors.edge.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20 x_refsource_MISCBroken Link
- https://nvd.nist.gov/vuln/detail/CVE-2007-6762
- https://support.f5.com/csp/article/K05342145 x_refsource_CONFIRM
- https://support.f5.com/csp/article/K05342145?utm_source=f5support&%3Butm_medium=RSS x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2007-6762
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2007-6762 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1735620 | Issue Tracking | |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a2f11c227bdf292b3a2900ad04139d301b56ac4 | x_refsource_MISCPatchVendor Advisory | |
| https://github.com/torvalds/linux/commit/2a2f11c227bdf292b3a2900ad04139d301b56ac4 | x_refsource_MISCPatchThird Party Advisory | |
| https://mirrors.edge.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20 | x_refsource_MISCBroken Link | |
| https://nvd.nist.gov/vuln/detail/CVE-2007-6762 | ||
| https://support.f5.com/csp/article/K05342145 | x_refsource_CONFIRM | |
| https://support.f5.com/csp/article/K05342145?utm_source=f5support&%3Butm_medium=RSS | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2007-6762 |
Change history (0)
No recorded changes yet.