dhcp: DoS in DHCPv6 due to error in handling malformed client identifiers
Published Jul 25, 2012
5.7
MEDIUMCVSS 2.0
EPSS 2.57%
Description
Buffer overflow in ISC DHCP 4.2.x before 4.2.4-P1, when DHCPv6 mode is enabled, allows remote attackers to cause a denial of service (segmentation fault and daemon exit) via a crafted client identifier parameter.
Affected products
No data.
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.0
- 4.2.1
- 4.2.1
- 4.2.1
- 4.2.2
- 4.2.2
- 4.2.2
- 4.2.3
- 4.2.3
- 4.2.3
- 4.2.4
No data.
Red Hat Enterprise Linux 5
dhcp
Not affected
Red Hat Enterprise Linux 6
dhcp
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | dhcp | Not affected | n/a |
| Red Hat Enterprise Linux 6 | dhcp | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of dhcp as shipped with Red Hat Enterprise Linux 5 and 6.
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.57% (0.02572) | 84.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.57% (0.02572) | 83.09th | v5 (v2026.06.15) |
| Mar 17, 2025 | 4.05% (0.04048) | 87.75th | v4 (v2025.03.14) |
| Jan 23, 2025 | 18.33% (0.18333) | 96.23th | v3 (v2023.03.01) |
| Dec 17, 2024 | 17.08% (0.17078) | 96.05th | v3 (v2023.03.01) |
| Feb 23, 2024 | 22.33% (0.22326) | 96.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 28.44% (0.28441) | 96.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.93% (0.01934) | 78.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.93% (0.01934) | 76.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.93% (0.01934) | 55.24th | v2 (v2022.01.01) |
References (9)
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html vendor-advisoryx_refsource_SUSE
- http://security.gentoo.org/glsa/glsa-201301-06.xml vendor-advisoryx_refsource_GENTOO
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:115 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/bid/54665 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2012-3570 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=842424 Issue Tracking
- https://kb.isc.org/article/AA-00714 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2012-3570
- https://www.cve.org/CVERecord?id=CVE-2012-3570
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html | vendor-advisoryx_refsource_SUSE | |
| http://security.gentoo.org/glsa/glsa-201301-06.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:115 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.securityfocus.com/bid/54665 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2012-3570 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=842424 | Issue Tracking | |
| https://kb.isc.org/article/AA-00714 | x_refsource_CONFIRMVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-3570 | ||
| https://www.cve.org/CVERecord?id=CVE-2012-3570 |
Change history (0)
No recorded changes yet.