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Purlpkg:rpm/redhat/container-tools:latest/runc@4:1.1.9-1?arch=el9
Typerpm
Namespaceredhat/container-tools:latest
Namerunc
Version4:1.1.9-1
Qualifiers
arch el9
Subpath
Is_vulnerabletrue
Next_non_vulnerable_versionnull
Latest_non_vulnerable_versionnull
Affected_by_vulnerabilities
0
url VCID-41bb-kmck-3kf6
vulnerability_id VCID-41bb-kmck-3kf6
summary runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc, netlink is used internally as a serialization system for specifying the relevant container configuration to the `C` portion of the code (responsible for the based namespace setup of containers). In all versions of runc prior to 1.0.3, the encoder did not handle the possibility of an integer overflow in the 16-bit length field for the byte array attribute type, meaning that a large enough malicious byte array attribute could result in the length overflowing and the attribute contents being parsed as netlink messages for container configuration. This vulnerability requires the attacker to have some control over the configuration of the container and would allow the attacker to bypass the namespace restrictions of the container by simply adding their own netlink payload which disables all namespaces. The main users impacted are those who allow untrusted images with untrusted configurations to run on their machines (such as with shared cloud infrastructure). runc version 1.0.3 contains a fix for this bug. As a workaround, one may try disallowing untrusted namespace paths from your container. It should be noted that untrusted namespace paths would allow the attacker to disable namespace protections entirely even in the absence of this bug.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-43784.json
reference_id
reference_type
scores
0
value 5.0
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-43784.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-43784
reference_id
reference_type
scores
0
value 0.00115
scoring_system epss
scoring_elements 0.29731
published_at 2026-06-04T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-43784
2
reference_url https://bugs.chromium.org/p/project-zero/issues/detail?id=2241
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://bugs.chromium.org/p/project-zero/issues/detail?id=2241
3
reference_url https://github.com/opencontainers/runc
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/opencontainers/runc
4
reference_url https://github.com/opencontainers/runc/commit/9c444070ec7bb83995dbc0185da68284da71c554
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/opencontainers/runc/commit/9c444070ec7bb83995dbc0185da68284da71c554
5
reference_url https://github.com/opencontainers/runc/commit/d72d057ba794164c3cce9451a00b72a78b25e1ae
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/opencontainers/runc/commit/d72d057ba794164c3cce9451a00b72a78b25e1ae
6
reference_url https://github.com/opencontainers/runc/commit/dde509df4e28cec33b3c99c6cda3d4fd5beafc77
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/opencontainers/runc/commit/dde509df4e28cec33b3c99c6cda3d4fd5beafc77
7
reference_url https://github.com/opencontainers/runc/commit/f50369af4b571e358f20b139eea52d612eb55eed
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/opencontainers/runc/commit/f50369af4b571e358f20b139eea52d612eb55eed
8
reference_url https://github.com/opencontainers/runc/security/advisories/GHSA-v95c-p5hm-xq8f
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/opencontainers/runc/security/advisories/GHSA-v95c-p5hm-xq8f
9
reference_url https://lists.debian.org/debian-lts-announce/2021/12/msg00005.html
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://lists.debian.org/debian-lts-announce/2021/12/msg00005.html
10
reference_url https://lists.debian.org/debian-lts-announce/2024/02/msg00005.html
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://lists.debian.org/debian-lts-announce/2024/02/msg00005.html
11
reference_url https://nvd.nist.gov/vuln/detail/CVE-2021-43784
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2021-43784
12
reference_url https://pkg.go.dev/vuln/GO-2022-0274
reference_id
reference_type
scores
0
value 6.0
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://pkg.go.dev/vuln/GO-2022-0274
13
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2029439
reference_id 2029439
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2029439
14
reference_url https://security.archlinux.org/AVG-2599
reference_id AVG-2599
reference_type
scores
0
value Low
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-2599
15
reference_url https://security.gentoo.org/glsa/202408-25
reference_id GLSA-202408-25
reference_type
scores
url https://security.gentoo.org/glsa/202408-25
16
reference_url https://access.redhat.com/errata/RHSA-2023:6380
reference_id RHSA-2023:6380
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:6380
fixed_packages
aliases CVE-2021-43784, GHSA-v95c-p5hm-xq8f
risk_score 3.1
exploitability 0.5
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-41bb-kmck-3kf6
Fixing_vulnerabilities
Risk_score3.1
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:rpm/redhat/container-tools:latest/runc@4:1.1.9-1%3Farch=el9