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RHSA-2004:059

Vulnerability from csaf_redhat - Published: 2004-02-13 08:51 - Updated: 2025-11-21 17:27
Summary
Red Hat Security Advisory: : Updated XFree86 packages fix privilege escalation vulnerability
Severity
Important
Notes
Topic: Updated XFree86 packages that fix a privilege escalation vulnerability are now available.
Details: XFree86 is an implementation of the X Window System, providing the core graphical user interface and video drivers. iDefense discovered two buffer overflows in the parsing of the 'font.alias' file. A local attacker could exploit this vulnerability by creating a carefully-crafted file and gaining root privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2004-0083 and CAN-2004-0084 to these issues. Additionally David Dawes discovered additional flaws in reading font files. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0106 to these issues. All users of XFree86 are advised to upgrade to these erratum packages, which contain a backported fix and are not vulnerable to these issues. Red Hat would like to thank David Dawes from XFree86 for the patches and notification of these issues.
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.
CVE-2004-0083

Buffer overflow in ReadFontAlias from dirfile.c of XFree86 4.1.0 through 4.3.0 allows local users and remote attackers to execute arbitrary code via a font alias file (font.alias) with a long token, a different vulnerability than CVE-2004-0084 and CVE-2004-0106.

Affected products
Product Identifier Version Remediation
Red Hat Linux 9
Red Hat / Red Hat Linux
 cpe:/o:redhat:linux:9 —
Vendor Fix fix
Threats
Impact Important
CVE-2004-0084

Buffer overflow in the ReadFontAlias function in XFree86 4.1.0 to 4.3.0, when using the CopyISOLatin1Lowered function, allows local or remote authenticated users to execute arbitrary code via a malformed entry in the font alias (font.alias) file, a different vulnerability than CVE-2004-0083 and CVE-2004-0106.

Affected products
Fixed 1 product, the same list as for CVE-2004-0083
Threats
Impact Important
CVE-2004-0106

Multiple unknown vulnerabilities in XFree86 4.1.0 to 4.3.0, related to improper handling of font files, a different set of vulnerabilities than CVE-2004-0083 and CVE-2004-0084.

Affected products
Fixed 1 product, the same list as for CVE-2004-0083
Threats
Impact Important
References
Acknowledgments
XFree86 David Dawes
iDefense
To clipboard 

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        "text": "XFree86 is an implementation of the X Window System, providing the core\ngraphical user interface and video drivers. \n\niDefense discovered two buffer overflows in the parsing of the \u0027font.alias\u0027\nfile.  A local attacker could exploit this vulnerability by creating a\ncarefully-crafted file and gaining root privileges.\nThe Common Vulnerabilities and Exposures project (cve.mitre.org) has\nassigned the names CAN-2004-0083 and CAN-2004-0084 to these issues.\n\nAdditionally David Dawes discovered additional flaws in reading font files.\n The Common Vulnerabilities and Exposures project (cve.mitre.org) has\nassigned the name CAN-2004-0106 to these issues.\n\nAll users of XFree86 are advised to upgrade to these erratum packages,\nwhich contain a backported fix and are not vulnerable to these issues.\n\nRed Hat would like to thank David Dawes from XFree86 for the patches and\nnotification of these issues.",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.