rhsa-2024_4537
Vulnerability from csaf_redhat
Published
2024-07-15 13:14
Modified
2024-11-06 06:24
Summary
Red Hat Security Advisory: ghostscript security update

Notes

Topic
An update for ghostscript is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. 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 Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed. Security Fix(es): * ghostscript: OPVP device arbitrary code execution via custom Driver library (CVE-2024-33871) 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.
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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      "cwe": {
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        "name": "Improper Input Validation"
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      "discovery_date": "2024-05-16T00:00:00+00:00",
      "ids": [
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          "text": "2283508"
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      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Ghostscript. The \"Driver\" parameter for the \"opvp\"/\"oprp\" device specifies the name of a dynamic library and allows any library to be loaded. This flaw allows a malicious user to send a specially crafted document that, when processed by Ghostscript, could potentially lead to arbitrary code execution with the privileges of the Ghostscript process on the system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ghostscript: OPVP device arbitrary code execution via custom Driver library",
          "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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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2024-33871"
        },
        {
          "category": "external",
          "summary": "RHBZ#2283508",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2283508"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2024-33871",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-33871"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-33871",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33871"
        }
      ],
      "release_date": "2024-05-02T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-07-15T13:14:03+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",
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            "AppStream-8.2.0.Z.AUS:ghostscript-gtk-debuginfo-0:9.25-6.el8_2.1.x86_64",
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            "AppStream-8.2.0.Z.AUS:ghostscript-x11-debuginfo-0:9.25-6.el8_2.1.x86_64",
            "AppStream-8.2.0.Z.AUS:libgs-0:9.25-6.el8_2.1.i686",
            "AppStream-8.2.0.Z.AUS:libgs-0:9.25-6.el8_2.1.x86_64",
            "AppStream-8.2.0.Z.AUS:libgs-debuginfo-0:9.25-6.el8_2.1.i686",
            "AppStream-8.2.0.Z.AUS:libgs-debuginfo-0:9.25-6.el8_2.1.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:4537"
        },
        {
          "category": "workaround",
          "details": "Passing the -dSAFER safety argument on the command line prevents the issue by locking security-related variables after Ghostscript\u2019s initialization. In RHEL 9, -dSAFER is enabled by default, ensuring that insecure commands are rejected in a safer environment. This mitigation is equally effective in RHEL 7 and 8 when -dSAFER is explicitly passed on the command line, addressing the vulnerability that allows insecure commands within PostScript files. Since the OPVP device, cannot be removed, we recommend to use -dSAFER in RHEL 7 and 8 as a practical security measure.",
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          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "ghostscript: OPVP device arbitrary code execution via custom Driver library"
    }
  ]
}


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