CUPS texttops WriteProlog() buffer overflow

cups-texttops-writeprolog-bo (48977) The risk level is classified as HighHigh Risk

Description:

CUPS is vulnerable to a heap-based buffer overflow, caused by an integer overflow error in the WriteProlog() function within the texttops utility. By sending a specially-crafted PostScript file, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.

*CVSS:

Base Score: 6.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to RHSA-2009-0308 for patch, upgrade or suggested workaround information. See References.

References:

  • Cups Web site: Common UNIX Printing System.
  • Red Hat Bugzilla Bug 486052: CVE-2009-0577 cups-CVE-2008-3640.patch has been corrupted.
  • ASA-2009-064: cups security update (RHSA-2009-0308)
  • CVE-2009-0577: Integer overflow in the WriteProlog function in texttops in CUPS 1.1.17 on Red Hat Enterprise Linux (RHEL) 3 allows remote attackers to execute arbitrary code via a crafted PostScript file that triggers a heap-based buffer overflow. NOTE: this issue exists because of an incorrect fix for CVE-2008-3640.
  • RHSA-2009-0308: Important: cups security update

Platforms Affected:

  • Apple Cups 1.1.17
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 AS

Reported:

Feb 19, 2009

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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