VulnerabilityModified

CVE-2007-2846

Heap-based buffer overflow in the SIS unpacker in avast!

HIGH 9.3EPSS 7.74%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (7.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Heap-based buffer overflow in the SIS unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted SIS archive, resulting from an "integer cast around."

CVSS 2.0: 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS: 7.74% probability · 94th percentile
CISA KEV: Not listed
Weakness: CWE-119
Affected: avas\!t/avast\! antivirus · avast\!/avast\! antivirus
Source: cve@mitre.org

References

http://marc.info/?l=full-disclosure&m=118007660813710&w=2
http://osvdb.org/36522
http://www.avast.com/eng/adnm-management-client-revision-history.html
http://www.kb.cert.org/vuls/id/125868US Government Resource
http://www.nruns.com/advisories/%5Bn.runs-SA-2007.009%5D%20-%20Avast%21%20Antivirus%20SIS%20parsing%20Arbitrary%20Code%20Execution%20Advisory.txt
http://www.securityfocus.com/archive/1/469585/100/0/threaded
http://www.securityfocus.com/bid/24155
http://www.vupen.com/english/advisories/2007/1935Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/34501
http://marc.info/?l=full-disclosure&m=118007660813710&w=2
http://osvdb.org/36522
http://www.avast.com/eng/adnm-management-client-revision-history.html
http://www.kb.cert.org/vuls/id/125868US Government Resource
http://www.nruns.com/advisories/%5Bn.runs-SA-2007.009%5D%20-%20Avast%21%20Antivirus%20SIS%20parsing%20Arbitrary%20Code%20Execution%20Advisory.txt
http://www.securityfocus.com/archive/1/469585/100/0/threaded
http://www.securityfocus.com/bid/24155
http://www.vupen.com/english/advisories/2007/1935Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/34501

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.