bind: abort DoS caused by uninitialized value use in isselfsigned()
Published Jul 8, 2015
7.8
HIGHCVSS 2.0
EPSS 37.87%
Description
name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then making a query for a name in that zone.
Affected products
No data.
- 9.7.0
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No data.
Red Hat Enterprise Linux 6
bind-32:9.8.2-0.37.rc1.el6_7.1
Fixed · RHSA-2015:1471
Red Hat Enterprise Linux 7
bind-32:9.9.4-18.ael7b_1.2
Fixed · RHSA-2015:1443
Red Hat Enterprise Linux 4
bind
Not affected
Red Hat Enterprise Linux 5
bind
Not affected
Red Hat Enterprise Linux 5
bind97
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | bind-32:9.8.2-0.37.rc1.el6_7.1 | Fixed | RHSA-2015:1471 |
| Red Hat Enterprise Linux 7 | bind-32:9.9.4-18.ael7b_1.2 | Fixed | RHSA-2015:1443 |
| Red Hat Enterprise Linux 4 | bind | Not affected | n/a |
| Red Hat Enterprise Linux 5 | bind | Not affected | n/a |
| Red Hat Enterprise Linux 5 | bind97 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of bind packages as shipped with Red Hat Enterprise Linux 4 and 5. This issue affects the versions of bind97 packages as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Important security impact and is not currently planned to be addressed in future bind97 packages updates in Red Hat Enterprise Linux 5. 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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/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 (44 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 37.87% (0.37872) | 98.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 37.87% (0.37872) | 98.35th | v5 (v2026.06.15) |
| Mar 4, 2026 | 27.16% (0.27161) | 96.29th | v4 (v2025.03.14) |
| Mar 1, 2026 | 29.90% (0.29900) | 96.57th | v4 (v2025.03.14) |
| Feb 4, 2026 | 27.16% (0.27161) | 96.25th | v4 (v2025.03.14) |
| Feb 1, 2026 | 29.90% (0.29900) | 96.55th | v4 (v2025.03.14) |
| Jan 4, 2026 | 27.16% (0.27161) | 96.21th | v4 (v2025.03.14) |
| Jan 1, 2026 | 29.90% (0.29900) | 96.52th | v4 (v2025.03.14) |
| Dec 4, 2025 | 27.16% (0.27161) | 96.19th | v4 (v2025.03.14) |
| Dec 1, 2025 | 29.90% (0.29900) | 96.48th | v4 (v2025.03.14) |
| Nov 29, 2025 | 15.14% (0.15145) | 94.32th | v4 (v2025.03.14) |
| Nov 4, 2025 | 13.88% (0.13878) | 94.01th | v4 (v2025.03.14) |
| Nov 1, 2025 | 12.01% (0.12008) | 93.52th | v4 (v2025.03.14) |
| Oct 4, 2025 | 13.88% (0.13878) | 94.05th | v4 (v2025.03.14) |
| Oct 1, 2025 | 12.01% (0.12008) | 93.55th | v4 (v2025.03.14) |
| Sep 4, 2025 | 13.88% (0.13878) | 94.07th | v4 (v2025.03.14) |
| Sep 1, 2025 | 12.01% (0.12008) | 93.56th | v4 (v2025.03.14) |
| Aug 5, 2025 | 13.88% (0.13878) | 94.02th | v4 (v2025.03.14) |
| Aug 1, 2025 | 12.01% (0.12008) | 93.53th | v4 (v2025.03.14) |
| Jul 5, 2025 | 13.88% (0.13878) | 93.98th | v4 (v2025.03.14) |
| Jul 1, 2025 | 12.01% (0.12008) | 93.49th | v4 (v2025.03.14) |
| Jun 19, 2025 | 13.88% (0.13878) | 93.96th | v4 (v2025.03.14) |
| Jun 6, 2025 | 22.28% (0.22283) | 95.47th | v4 (v2025.03.14) |
| Jun 1, 2025 | 17.59% (0.17593) | 94.77th | v4 (v2025.03.14) |
| May 24, 2025 | 22.28% (0.22283) | 95.48th | v4 (v2025.03.14) |
| May 17, 2025 | 13.88% (0.13878) | 93.92th | v4 (v2025.03.14) |
| May 6, 2025 | 17.72% (0.17722) | 94.71th | v4 (v2025.03.14) |
| May 1, 2025 | 14.71% (0.14714) | 94.13th | v4 (v2025.03.14) |
| Apr 14, 2025 | 17.72% (0.17722) | 94.59th | v4 (v2025.03.14) |
| Apr 13, 2025 | 14.71% (0.14714) | 93.93th | v4 (v2025.03.14) |
| Apr 8, 2025 | 17.72% (0.17722) | 94.59th | v4 (v2025.03.14) |
| Apr 7, 2025 | 14.71% (0.14714) | 93.92th | v4 (v2025.03.14) |
| Mar 30, 2025 | 17.72% (0.17722) | 94.58th | v4 (v2025.03.14) |
| Mar 29, 2025 | 24.35% (0.24350) | 93.69th | v4 (v2025.03.14) |
| Mar 28, 2025 | 17.72% (0.17722) | 94.58th | v4 (v2025.03.14) |
| Mar 27, 2025 | 14.71% (0.14714) | 93.56th | v4 (v2025.03.14) |
| Mar 21, 2025 | 17.72% (0.17722) | 94.62th | v4 (v2025.03.14) |
| Mar 17, 2025 | 21.60% (0.21598) | 95.26th | v4 (v2025.03.14) |
| Feb 17, 2025 | 17.72% (0.17721) | 96.19th | v3 (v2023.03.01) |
| Dec 12, 2024 | 14.92% (0.14924) | 96.02th | v3 (v2023.03.01) |
| Sep 5, 2023 | 15.65% (0.15650) | 95.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 17.26% (0.17264) | 95.20th | v3 (v2023.03.01) |
| Mar 6, 2023 | 26.38% (0.26383) | 97.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 26.38% (0.26383) | 95.72th | v2 (v2022.01.01) |
References (25)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162040.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162286.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00013.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00050.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-07/msg00038.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=143740940810833&w=2 vendor-advisoryx_refsource_HP
- http://rhn.redhat.com/errata/RHSA-2015-1443.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1471.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3304 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/75588 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032799 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2669-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-4620 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1237258 Issue Tracking
- https://kb.isc.org/article/AA-01267 x_refsource_CONFIRMVendor Advisory
- https://kb.isc.org/article/AA-01305 x_refsource_CONFIRM
- https://kb.isc.org/article/AA-01306 x_refsource_CONFIRM
- https://kb.isc.org/article/AA-01307 x_refsource_CONFIRM
- https://kb.isc.org/article/AA-01438 x_refsource_CONFIRM
- https://kb.juniper.net/JSA10783 x_refsource_CONFIRM
- https://kc.mcafee.com/corporate/index?page=content&id=SB10124 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-4620
- https://security.gentoo.org/glsa/201510-01 vendor-advisoryx_refsource_GENTOO
- https://security.netapp.com/advisory/ntap-20190903-0003/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-4620
Change history (0)
No recorded changes yet.