suse-su-2015:0702-1
Vulnerability from csaf_suse
Published
2015-03-20 15:39
Modified
2015-03-20 15:39
Summary
Security update for libXfont

Notes

Title of the patch
Security update for libXfont
Description of the patch
LibXFont was updated to fix security problems. Following security issues were fixed: - CVE-2015-1802: The bdf parser reads a count for the number of properties defined in a font from the font file, and allocates arrays with entries for each property based on that count. It never checked to see if that count was negative, or large enough to overflow when multiplied by the size of the structures being allocated, and could thus allocate the wrong buffer size, leading to out of bounds writes. - CVE-2015-1803: If the bdf parser failed to parse the data for the bitmap for any character, it would proceed with an invalid pointer to the bitmap data and later crash when trying to read the bitmap from that pointer. - CVE-2015-1804: The bdf parser read metrics values as 32-bit integers, but stored them into 16-bit integers. Overflows could occur in various operations leading to out-of-bounds memory access.
Patchnames
SUSE-SLE-DESKTOP-12-2015-161,SUSE-SLE-SDK-12-2015-161,SUSE-SLE-SERVER-12-2015-161
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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        "text": "\nLibXFont was updated to fix security problems.\n\nFollowing security issues were fixed:\n- CVE-2015-1802: The bdf parser reads a count for the number of properties\n  defined in a font from the font file, and allocates arrays with entries for each\n  property based on that count. It never checked to see if that count\n  was negative, or large enough to overflow when multiplied by the size\n  of the structures being allocated, and could thus allocate the wrong\n  buffer size, leading to out of bounds writes.\n\n- CVE-2015-1803: If the bdf parser failed to parse the data for the bitmap for any\n  character, it would proceed with an invalid pointer to the bitmap\n  data and later crash when trying to read the bitmap from that pointer.\n\n- CVE-2015-1804: The bdf parser read metrics values as 32-bit integers, but stored\n  them into 16-bit integers. Overflows could occur in various operations\n  leading to out-of-bounds memory access. \n",
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          "category": "general",
          "text": "The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file.",
          "title": "CVE description"
        }
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            "SUSE Linux Enterprise Server 12:libXfont1-1.4.7-4.1.s390x",
            "SUSE Linux Enterprise Server 12:libXfont1-1.4.7-4.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12:libXfont1-1.4.7-4.1.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12:libXfont1-1.4.7-4.1.s390x",
            "SUSE Linux Enterprise Server for SAP Applications 12:libXfont1-1.4.7-4.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12:libXfont-devel-1.4.7-4.1.ppc64le",
            "SUSE Linux Enterprise Software Development Kit 12:libXfont-devel-1.4.7-4.1.s390x",
            "SUSE Linux Enterprise Software Development Kit 12:libXfont-devel-1.4.7-4.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2015-03-20T15:39:51Z",
          "details": "important"
        }
      ],
      "title": "CVE-2015-1804"
    }
  ]
}


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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.