
CVE catalog
CVE-2019-18934
unbound affected and fixed versions
Unbound 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can cause shell code execution after receiving a specially crafted answer. This issue can only be triggered if unbound was compiled with `--enable-ipsecmod` support, and ipsecmod is enabled and used in the configuration.
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.20% · Oct 27, 2026
Projects and upstream resources
Reported versions and fixes
Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Debiantrixie-security | unbound | 1.26.2-0+deb13u1 | Fixed | [CVE-2019-18934] |
| Debiantrixie | unbound | 1.22.0-2+deb13u3 | Fixed | [CVE-2019-18934] |
| Debiantrixie | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
| Debiansid | unbound | 1.26.2-1 | Fixed | [CVE-2019-18934] |
| Debiansid | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
| Debianforky | unbound | 1.26.2-1 | Fixed | [CVE-2019-18934] |
| Debianforky | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
| Debianbookworm-security | unbound | 1.17.1-2+deb12u3 | Fixed | [CVE-2019-18934] |
| Debianbookworm | unbound | 1.17.1-2+deb12u4 | Fixed | [CVE-2019-18934] |
| Debianbookworm | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
Showing 10 fix observations. All 37 observations, including unknown and conflicting reports, are available below.
Provider details and historical evidence
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Alpine3.10 | unbound | 1.9.1-r4 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.11 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.12 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.13 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.14 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.15 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.16 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.17 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.18 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.19 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.20 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.21 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.22 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.23 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.24 | unbound | 1.9.5-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.8 | unbound | 1.7.3-r2 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Alpine3.9 | unbound | 1.8.3-r3 | UnknownSource applicability is not established | [ALPINE-CVE-2019-18934] |
| Debianbookworm | unbound | 1.17.1-2+deb12u4 | Fixed | [CVE-2019-18934] |
| Debianbookworm | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
| Debianbookworm-security | unbound | 1.17.1-2+deb12u3 | Fixed | [CVE-2019-18934] |
| Debianforky | unbound | 1.26.2-1 | Fixed | [CVE-2019-18934] |
| Debianforky | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
| Debiansid | unbound | 1.26.2-1 | Fixed | [CVE-2019-18934] |
| Debiansid | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
| Debiantrixie | unbound | 1.22.0-2+deb13u3 | Fixed | [CVE-2019-18934] |
| Debiantrixie | unbound | 1.9.6-1 | FixedDistribution-reported fixed boundary | [CVE-2019-18934] |
| Debiantrixie-security | unbound | 1.26.2-0+deb13u1 | Fixed | [CVE-2019-18934] |
| Opensuseleap 15.1 | libunbound-devel-mini | 1.6.8-lp151.8.3.1 | UnknownSource applicability is not established | [OPENSUSE-SU-2020:0912-1] |
| Opensuseleap 15.1 | unbound | 1.6.8-lp151.8.3.1 | UnknownSource applicability is not established | [OPENSUSE-SU-2020:0912-1] |
| Opensuseleap 15.2 | libunbound-devel-mini | 1.6.8-lp152.9.3.1 | UnknownSource applicability is not established | [OPENSUSE-SU-2020:0913-1] |
| Opensuseleap 15.2 | unbound | 1.6.8-lp152.9.3.1 | UnknownSource applicability is not established | [OPENSUSE-SU-2020:0913-1] |
| Suselinux enterprise high performance computing 15-espos | unbound | 1.6.8-3.6.1 | UnknownSource applicability is not established | [SUSE-SU-2020:1819-1] |
| Suselinux enterprise high performance computing 15-ltss | unbound | 1.6.8-3.6.1 | UnknownSource applicability is not established | [SUSE-SU-2020:1819-1] |
| Suselinux enterprise module for basesystem 15 sp1 | unbound | 1.6.8-10.3.1 | UnknownSource applicability is not established | [SUSE-SU-2020:1772-1] |
| Suselinux enterprise module for basesystem 15 sp2 | unbound | 1.6.8-10.3.1 | UnknownSource applicability is not established | [SUSE-SU-2020:1772-1] |
| Suselinux enterprise server 15-ltss | unbound | 1.6.8-3.6.1 | UnknownSource applicability is not established | [SUSE-SU-2020:1819-1] |
| Suselinux enterprise server for sap applications 15 | unbound | 1.6.8-3.6.1 | UnknownSource applicability is not established | [SUSE-SU-2020:1819-1] |
Original provider fields
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],
"release": "linux enterprise server 15-ltss",
"versions": [],
"ecosystem": "rpm",
"provider_url": "https://osv.dev/vulnerability/SUSE-SU-2020:1819-1",
"fixed_version": "1.6.8-3.6.1",
"provider_source": "pypi",
"provider_record_id": "SUSE-SU-2020:1819-1",
"provider_updated_at": "2026-02-04T02:39:24.796302Z",
"applicability_unknown": true
},
{
"name": "unbound",
"distro": "suse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.8-3.6.1"
}
]
}
],
"release": "linux enterprise server for sap applications 15",
"versions": [],
"ecosystem": "rpm",
"provider_url": "https://osv.dev/vulnerability/SUSE-SU-2020:1819-1",
"fixed_version": "1.6.8-3.6.1",
"provider_source": "pypi",
"provider_record_id": "SUSE-SU-2020:1819-1",
"provider_updated_at": "2026-02-04T02:39:24.796302Z",
"applicability_unknown": true
},
{
"name": "libunbound-devel-mini",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.8-lp152.9.3.1"
}
]
}
],
"release": "leap 15.2",
"versions": [],
"ecosystem": "rpm",
"provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2020:0913-1",
"fixed_version": "1.6.8-lp152.9.3.1",
"provider_source": "pypi",
"provider_record_id": "OPENSUSE-SU-2020:0913-1",
"provider_updated_at": "2026-02-04T02:20:00.225380Z",
"applicability_unknown": true
},
{
"name": "unbound",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.8-lp152.9.3.1"
}
]
}
],
"release": "leap 15.2",
"versions": [],
"ecosystem": "rpm",
"provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2020:0913-1",
"fixed_version": "1.6.8-lp152.9.3.1",
"provider_source": "pypi",
"provider_record_id": "OPENSUSE-SU-2020:0913-1",
"provider_updated_at": "2026-02-04T02:20:00.225380Z",
"applicability_unknown": true
},
{
"name": "libunbound-devel-mini",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.8-lp151.8.3.1"
}
]
}
],
"release": "leap 15.1",
"versions": [],
"ecosystem": "rpm",
"provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2020:0912-1",
"fixed_version": "1.6.8-lp151.8.3.1",
"provider_source": "pypi",
"provider_record_id": "OPENSUSE-SU-2020:0912-1",
"provider_updated_at": "2026-02-04T02:14:26.518116Z",
"applicability_unknown": true
},
{
"name": "unbound",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.8-lp151.8.3.1"
}
]
}
],
"release": "leap 15.1",
"versions": [],
"ecosystem": "rpm",
"provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2020:0912-1",
"fixed_version": "1.6.8-lp151.8.3.1",
"provider_source": "pypi",
"provider_record_id": "OPENSUSE-SU-2020:0912-1",
"provider_updated_at": "2026-02-04T02:14:26.518116Z",
"applicability_unknown": true
}
]
}OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libunbound8]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
- [libunbound-dev]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
- [python3-unbound]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
- [unbound]Unknown
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
- [unbound-anchor]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
- [unbound-host]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · bookworm; dsa · unbound · debian · 12
[Debian 13 (Trixie)]
- [libunbound8]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
- [libunbound-dev]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
- [python3-unbound]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
- [unbound]Unknown
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
- [unbound-anchor]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
- [unbound-host]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.9.6-1dsa · unbound · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_1716.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-18934]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-18934]
- [https://osv.dev/vulnerability/SUSE-SU-2020:1772-1]
- [https://osv.dev/vulnerability/SUSE-SU-2020:1819-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2020:0912-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2020:0913-1]
- [https://security-tracker.debian.org/tracker/CVE-2019-18934]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-18934.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]