csaf_redhat - rhsa-2024

rhsa-2024_0670

Vulnerability from csaf_redhat

Published

2024-02-02 21:05

Modified

2024-12-17 20:46

Summary

Red Hat Security Advisory: runc security update

Notes

Topic

An update for runc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime. Security Fix(es): * runc: file descriptor leak (CVE-2024-21626) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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          "category": "description",
          "text": "A file descriptor leak issue was found in the runc package. While a user performs `O_CLOEXEC` all file descriptors before executing the container code, the file descriptor is open when performing `setcwd(2)`, which means that the reference can be kept alive in the container by configuring the working directory to be a path resolved through the file descriptor. The non-dumpable bit is unset after `execve`, meaning there are multiple ways to attack this other than bad configurations. The only way to defend against it entirely is to close all unneeded file descriptors.",
          "title": "Vulnerability description"
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          "text": "runc: file descriptor leak",
          "title": "Vulnerability summary"
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          "text": "These vulnerabilities not only enable malicious actors to escape containerized environments but also allow for full control over the underlying host system. With the widespread adoption of containerization technologies in both development and production environments, such exploits pose significant risks to data integrity, confidentiality, and system stability.\n\nOpenShift Container Platform ships with SELinux in targeted enforcing mode, which prevents the container processes from accessing host content and mitigates this attack, and disabling SELinux on the Openshift container platform is not supported. Hence, the impact of the Openshift Container Platform is reduced to Moderate.\n\nFor multicluster-engine (MCE) vulnerable versions of buildkit and runc are part of installed version of oc. However, they are not affecting the higher-level assisted-installer binary in MCE. The presence of these dependencies in the container does not imply a security risk to the containerized application itself, as it is based on low-level packages included in the oc binary, and the impact to the container\u0027s core functionality is minimal.\n\nThis flaw doesn\u0027t affect the OpenShift Tools \u0026 Services as the affected code is only used for testing and is not exposed to the final user.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.ppc64le",
          "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.s390x",
          "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2024-21626"
        },
        {
          "category": "external",
          "summary": "RHBZ#2258725",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2258725"
        },
        {
          "category": "external",
          "summary": "RHSB-2024-001",
          "url": "https://access.redhat.com/security/vulnerabilities/RHSB-2024-001"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2024-21626",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-21626"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-21626",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21626"
        },
        {
          "category": "external",
          "summary": "https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv",
          "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv"
        }
      ],
      "release_date": "2024-01-31T20:01:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-02-02T21:05:26+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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            "AppStream-9.3.0.Z.MAIN:runc-4:1.1.12-1.el9_3.ppc64le",
            "AppStream-9.3.0.Z.MAIN:runc-4:1.1.12-1.el9_3.s390x",
            "AppStream-9.3.0.Z.MAIN:runc-4:1.1.12-1.el9_3.src",
            "AppStream-9.3.0.Z.MAIN:runc-4:1.1.12-1.el9_3.x86_64",
            "AppStream-9.3.0.Z.MAIN:runc-debuginfo-4:1.1.12-1.el9_3.aarch64",
            "AppStream-9.3.0.Z.MAIN:runc-debuginfo-4:1.1.12-1.el9_3.ppc64le",
            "AppStream-9.3.0.Z.MAIN:runc-debuginfo-4:1.1.12-1.el9_3.s390x",
            "AppStream-9.3.0.Z.MAIN:runc-debuginfo-4:1.1.12-1.el9_3.x86_64",
            "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.aarch64",
            "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.ppc64le",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:0670"
        },
        {
          "category": "workaround",
          "details": "Red Hat Enterprise Linux (RHEL) and OpenShift ships with SELinux in targeted enforcing mode, which prevents the container processes from accessing host content and mitigates this attack. Dockerfiles can be inspected on the \u0027RUN\u0027\u00a0and \u0027WORKDIR\u0027 directives to ensure that there are no escapes or malicious paths, which are an indication of compromise. Limiting access and only using trusted container images can help prevent unauthorized access and malicious attacks.",
          "product_ids": [
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            "AppStream-9.3.0.Z.MAIN:runc-debuginfo-4:1.1.12-1.el9_3.ppc64le",
            "AppStream-9.3.0.Z.MAIN:runc-debuginfo-4:1.1.12-1.el9_3.s390x",
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            "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.ppc64le",
            "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.s390x",
            "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.x86_64"
          ]
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-9.3.0.Z.MAIN:runc-4:1.1.12-1.el9_3.aarch64",
            "AppStream-9.3.0.Z.MAIN:runc-4:1.1.12-1.el9_3.ppc64le",
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            "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.aarch64",
            "AppStream-9.3.0.Z.MAIN:runc-debugsource-4:1.1.12-1.el9_3.ppc64le",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "runc: file descriptor leak"
    }
  ]
}

cve-2024-21626

Vulnerability from cvelistv5

Published

2024-01-31 21:31

Modified

2024-08-19 07:48

Severity ?

8.6 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Summary

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same attack could be used by a malicious image to allow a container process to gain access to the host filesystem through runc run ("attack 1"). Variants of attacks 1 and 2 could be also be used to overwrite semi-arbitrary host binaries, allowing for complete container escapes ("attack 3a" and "attack 3b"). runc 1.1.12 includes patches for this issue.

References

▼	URL	Tags
	https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv	x_refsource_CONFIRM
	https://github.com/opencontainers/runc/commit/02120488a4c0fc487d1ed2867e901eeed7ce8ecf	x_refsource_MISC
	https://github.com/opencontainers/runc/releases/tag/v1.1.12	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2024/02/01/1
	http://www.openwall.com/lists/oss-security/2024/02/02/3
	http://packetstormsecurity.com/files/176993/runc-1.1.11-File-Descriptor-Leak-Privilege-Escalation.html
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYMO3BANINS6RGFQFKPRG4FIOJ7GWYTL/
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2NLXNE23Q5ESQUAI22Z7A63JX2WMPJ2J/
	https://lists.debian.org/debian-lts-announce/2024/02/msg00005.html

Impacted products

Vendor

Product

Version

▼

opencontainers

runc

Version: >=v1.0.0-rc93, < 1.1.12

Show details on NVD website

JSON

To clipboard

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          {
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            "url": "https://github.com/opencontainers/runc/commit/02120488a4c0fc487d1ed2867e901eeed7ce8ecf"
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            "url": "http://www.openwall.com/lists/oss-security/2024/02/02/3"
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          {
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            "url": "http://packetstormsecurity.com/files/176993/runc-1.1.11-File-Descriptor-Leak-Privilege-Escalation.html"
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              "x_transferred"
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            "tags": [
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          {
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          "versions": [
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          "url": "http://www.openwall.com/lists/oss-security/2024/02/01/1"
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        {
          "url": "http://www.openwall.com/lists/oss-security/2024/02/02/3"
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        },
        {
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2NLXNE23Q5ESQUAI22Z7A63JX2WMPJ2J/"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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