avast! CAB and SIS File Processing Buffer Overflows - Secunia Advisories - Vulnerability Intelligence

avast! CAB and SIS File Processing Buffer Overflows
Secunia Advisory:	SA25380	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2007-05-24
Last Update:	2007-07-30
Popularity:	7,356 views

Critical:	Highly critical
Impact:	System access
Where:	From remote
Solution Status:	Vendor Patch

Software:	avast! Home/Professional 4.x avast! Managed Client 4.x avast! Server Edition 4.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2007-2845 CVE-2007-2846

Description: Sergio Alvarez has reported two vulnerabilities in avast!, which can be exploited by malicious people to compromise a vulnerable system. The vulnerabilities are caused due to errors within the parsing of .CAB and .SIS files and can be exploited to cause heap-based buffer overflows via a specially crafted .CAB or .SIS file. Successful exploitation may allow execution of arbitrary code. The vulnerabilities reportedly affects versions prior to 4.7.766 for servers, 4.7.700 for the Managed Client product, and 4.7.1029 for Home/Professional editions. Solution: Update to the latest versions. http://www.avast.com/eng/download.html Provided and/or discovered by: Sergio Alvarez, n.runs AG Changelog: 2007-05-25: Added additional vulnerable file type and links. 2007-05-29: Added link to US-CERT. 2007-06-01: Added CVE reference. 2007-07-30: Added Home/Professional edition in list of affected products. Added additional vendor link. Original Advisory: avast!: http://www.avast.com/eng/adnm-management-client-revision-history.html http://www.avast.com/eng/avast-4-server-revision-history.html http://www.avast.com/eng/avast-4-home_pro-revision-history.html n.runs AG: http://www.nruns.com/advisories/%5Bn....ary%20Code%20Execution%20Advisory.txt http://www.nruns.com/advisories/%5Bn....ary%20Code%20Execution%20Advisory.txt Other References: US-CERT VU#125868: http://www.kb.cert.org/vuls/id/125868

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