rhsa-2021_1582
Vulnerability from csaf_redhat
Published
2021-05-18 13:30
Modified
2024-11-05 23:33
Summary
Red Hat Security Advisory: cpio security update

Notes

Topic
An update for cpio is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 cpio packages provide the GNU cpio utility for creating and extracting archives, or copying files from one place to another. Security Fix(es): * cpio: improper input validation when writing tar header fields leads to unexpected tar generation (CVE-2019-14866) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.
Terms of Use
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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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Thomas Habets"
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      "cve": "CVE-2019-14866",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
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      "discovery_date": "2019-10-25T00:00:00+00:00",
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          "text": "1765511"
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        {
          "category": "description",
          "text": "It was discovered cpio does not properly validate input files when generating TAR archives. When cpio is used to create TAR archives from paths an attacker can write to, the resulting archive may contain files with permissions the attacker did not have or in paths he did not have access to. Extracting those archives from a high-privilege user without carefully reviewing them may lead to the compromise of the system.",
          "title": "Vulnerability description"
        },
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          "text": "cpio: improper input validation when writing tar header fields leads to unexpected tar generation",
          "title": "Vulnerability summary"
        },
        {
          "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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            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.ppc64le",
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            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:1582"
        },
        {
          "category": "workaround",
          "details": "TAR archives should be inspected before being extracted and the extraction should be performed with the `tar` command or `--no-absolute-filenames` option if done with `cpio`. Moreover, it should be performed by a low-privilege user whenever possible, to prevent extraction of files that could compromise the system.",
          "product_ids": [
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.aarch64",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.ppc64le",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.s390x",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.src",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.x86_64",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.aarch64",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.ppc64le",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.s390x",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.x86_64",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.aarch64",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.ppc64le",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.s390x",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.aarch64",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.ppc64le",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.s390x",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.src",
            "BaseOS-8.4.0.GA:cpio-0:2.12-10.el8.x86_64",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.aarch64",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.ppc64le",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.s390x",
            "BaseOS-8.4.0.GA:cpio-debuginfo-0:2.12-10.el8.x86_64",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.aarch64",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.ppc64le",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.s390x",
            "BaseOS-8.4.0.GA:cpio-debugsource-0:2.12-10.el8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "cpio: improper input validation when writing tar header fields leads to unexpected tar generation"
    }
  ]
}


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