CVE-2012-1458
The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 73.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different CHM parser implementations.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
- EPSS
- 73.67% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- clamav/clamav · sophos/sophos anti-virus
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html
- http://osvdb.org/80473
- http://osvdb.org/80474
- http://www.ieee-security.org/TC/SP2012/program.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:094
- http://www.securityfocus.com/archive/1/522005
- http://www.securityfocus.com/bid/52611
- https://exchange.xforce.ibmcloud.com/vulnerabilities/74301
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html
- http://osvdb.org/80473
- http://osvdb.org/80474
- http://www.ieee-security.org/TC/SP2012/program.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:094
- http://www.securityfocus.com/archive/1/522005
- http://www.securityfocus.com/bid/52611
- https://exchange.xforce.ibmcloud.com/vulnerabilities/74301
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.