VAR-200511-0109

Vulnerability from variot - Updated: 2023-12-18 11:14

Heap-based buffer overflow in Kaspersky Anti-Virus Engine, as used in Kaspersky Personal 5.0.227, Anti-Virus On-Demand Scanner for Linux 5.0.5, and F-Secure Anti-Virus for Linux 4.50 allows remote attackers to execute arbitrary code via a crafted CHM file. On Microsoft platforms, the affected software cannot execute arbitrary code, but prevents Kaspersky Anti-Virus from scanning any files, thus potentially allowing later malicious code to reach its target.

For more information: SA17130

The vulnerability has been reported in version 4.50. Prior versions may also be affected.

TITLE: Kaspersky Anti-Virus Engine CHM File Parsing Buffer Overflow

SECUNIA ADVISORY ID: SA17130

VERIFY ADVISORY: http://secunia.com/advisories/17130/

CRITICAL: Highly critical

IMPACT: DoS, System access

WHERE:

From remote

SOFTWARE: Kaspersky Anti-Virus 5.x http://secunia.com/product/2781/

DESCRIPTION: A vulnerability has been reported in Kaspersky Anti-Virus, which can be exploited by malicious people to cause a DoS (Denial of Service), or compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the scan engine when parsing a malformed CHM file. This can be exploited to cause a heap-based buffer overflow when a specially crafted CHM file is scanned. On Windows platforms, the anti-virus may fail to scan any other files after a malformed CHM file has been encountered.

SOLUTION: The vulnerability has reportedly been fixed via a signature update after July 2005.

PROVIDED AND/OR DISCOVERED BY: Discovered by anonymous person and reported via iDEFENSE.

ORIGINAL ADVISORY: iDEFENSE: http://www.idefense.com/application/poi/display?id=318&type=vulnerabilities


About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.

Subscribe: http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/

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Tags
Taxonomy of the tags.


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Sightings

Author Source Type Date

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.


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Detection rules are retrieved from Rulezet.

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