Skype URI buffer overflow

skype-uri-bo (22848) The risk level is classified as HighHigh Risk

Description:

Skype is vulnerable to a buffer overflow, caused by a vulnerability with Skype specific URI types (callto:// and skype://). A remote attacker could create a specially-crafted link which, once the link is clicked, could overflow a buffer and possibly execute arbitrary code on the system.


Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Skype for Windows (1.4.*.84 or later), available from the Skype Web site. See References.

References:

  • Skype Web site: Skype - The whole world can talk for free..
  • Skype Web site: Download Skype for Windows.
  • BID-15190: Skype Technologies Skype Multiple Buffer Overflow Vulnerabilities
  • CVE-2005-3265: Buffer overflow in Skype for Windows 1.1.x.0 through 1.4.x.83 allows remote attackers to execute arbitrary code via (1) callto:// and (2) skype:// links, or (3) a non-standard VCARD, possibly due to an underlying error in the SysUtils.WideFmtStr Delphi routine.
  • SA17305: Skype Multiple Buffer Overflow Vulnerabilities
  • US-CERT VU#668193: Skype VCARD handling routine contains a buffer overflow
  • US-CERT VU#930345: Skype URI handling routine contains a buffer overflow
  • VUPEN/ADV-2005-2197: Skype Multiple URI and VCARD Handling Buffer Overflow Vulnerabilities

Platforms Affected:

  • Skype Skype for Windows 1.1.x.0 - 1.4.x.83

Reported:

Oct 25, 2005

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