kernel: Stack buffer overflow in brcmf_cfg80211_start_ap
Published Oct 16, 2016
6.1
MEDIUMCVSS 3.0
EPSS 0.67%
Description
Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.7.5 allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket.
Affected products
No data.
- ≤ 4.7.4
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel-rt
Will not fix
Red Hat Enterprise MRG 2
realtime-kernel
Will not fix
| 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 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, as the code with the flaw is not present in the products listed. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG-2. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
AV:L/AC:L/Au:N/C:N/I:P/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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.67% (0.00672) | 50.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.65% (0.00647) | 45.97th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.17% (0.00167) | 35.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (13)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ded89912156b1a47d940a0c954c43afbabd0c42c x_refsource_CONFIRMIssue TrackingPatch
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5 x_refsource_CONFIRMRelease Notes
- http://www.openwall.com/lists/oss-security/2016/10/13/1 mailing-listx_refsource_MLISTMailing List
- http://www.securityfocus.com/bid/93541 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-3145-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3145-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3146-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3146-2 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2016-8658 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1384403 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/ded89912156b1a47d940a0c954c43afbabd0c42c x_refsource_CONFIRMIssue TrackingPatch
- https://nvd.nist.gov/vuln/detail/CVE-2016-8658
- https://www.cve.org/CVERecord?id=CVE-2016-8658
Change history (0)
No recorded changes yet.