RHSA-2002_152

Vulnerability from csaf_redhat - Published: 2002-08-05 07:25 - Updated: 2024-11-21 22:25
Summary
Red Hat Security Advisory: libpng security update

Notes

Topic
Updated libpng packages are available that fix a buffer overflow vulnerability.
Details
The libpng package contains a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files. PNG is a bit-mapped graphics format similar to the GIF format. Versions of libpng prior to 1.0.14 contain a buffer overflow in the progressive reader when the PNG datastream contains more IDAT data than indicated by the IHDR chunk. Such deliberately malformed datastreams would crash applications linked to libpng such as Mozilla that use the progressive reading feature. Packages within Red Hat Linux Advanced Server , such as Mozilla, make use of the shared libpng library, therefore all users are advised to upgrade to the errata packages which contain libpng 1.0.14. Libpng 1.0.14 is not vulnerable to this issue and contains fixes for other bugs including a number of memory leaks.
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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        "category": "summary",
        "text": "Updated libpng packages are available that fix a buffer overflow vulnerability.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The libpng package contains a library of functions for creating and\nmanipulating PNG (Portable Network Graphics) image format files. PNG\nis a bit-mapped graphics format similar to the GIF format.\n\nVersions of libpng prior to 1.0.14 contain a buffer overflow in the\nprogressive reader when the PNG datastream contains more IDAT data than\nindicated by the IHDR chunk. Such deliberately malformed datastreams would\ncrash applications linked to libpng such as Mozilla that use the\nprogressive reading feature.\n\nPackages within Red Hat Linux Advanced Server , such as Mozilla, make use\nof the shared libpng library, therefore all users are advised to upgrade to\nthe errata packages which contain libpng 1.0.14. Libpng 1.0.14 is not\nvulnerable to this issue and contains fixes for other bugs including a\nnumber of memory leaks.",
        "title": "Details"
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          "text": "Buffer overflow in libpng 1.0.12-3.woody.2 and libpng3 1.2.1-1.1.woody.2 on Debian GNU/Linux 3.0, and other operating systems, may allow attackers to cause a denial of service and possibly execute arbitrary code, a different vulnerability than CVE-2002-0728.",
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}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.