ClamAV 0.92 does not recognize Base64 UUEncoded archives, which allows remote attackers to bypass the scanner via a Base64-UUEncoded file.

Multiple vulnerabilities were discovered in ClamAV and corrected with the 0.93 release, including :

ClamAV 0.92 allowed local users to overwrite arbitrary files via a symlink attack on temporary files or on .ascii files in sigtool, when utf16-decode is enabled (CVE-2007-6595).

ClamAV 0.92 did not recognize Base64 uuencoded archives, which allowed remoted attackers to bypass the sanner via a base64-uuencoded file (CVE-2007-6596).

A heap-based buffer overflow in ClamAV 0.92.1 allowed remote attackers to execute arbitrary code via a crafted PeSpin packed PE binary (CVE-2008-0314).

An integer overflow in libclamav prior to 0.92.1 allowed remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted Petite packed PE file, which triggered a heap-based buffer overflow (CVE-2008-0318).

An unspecified vulnerability in ClamAV prior to 0.92.1 triggered heap corruption (CVE-2008-0728).

A buffer overflow in ClamAV 0.92 and 0.92.1 allowed remote attackers to execute arbitrary code via a crafted Upack PE file (CVE-2008-1100).

ClamAV prior to 0.93 allowed remote attackers to cause a denial of service (CPU consumption) via a crafted ARJ archive (CVE-2008-1387).

A heap-based buffer overflow in ClamAV 0.92.1 allowed remote attackers to execute arbitrary code via a crafted WWPack compressed PE binary (CVE-2008-1833).

ClamAV prior to 0.93 allowed remote attackers to bypass the scanning engine via a RAR file with an invalid version number (CVE-2008-1835).

A vulnerability in rfc2231 handling in ClamAV prior to 0.93 allowed remote attackers to cause a denial of service (crash) via a crafted message that produced a string that was not null terminated, triggering a buffer over-read (CVE-2008-1836).

A vulnerability in libclamunrar in ClamAV prior to 0.93 allowed remote attackers to cause a denial of service (crash) via a crafted RAR file (CVE-2008-1837).

Other bugs have also been corrected in 0.93 which is being provided with this update. Because this new version has increased the major of the libclamav library, updated dependent packages are also being provided.

This version upgrade of ClamAV to 0.93 fixes a long list of vulnerabilities. These vulnerabilities can lead to remote code execution, bypassing the scanning engine, remote denial-of-service, local file overwrite. (CVE-2008-1837 / CVE-2008-1836 / CVE-2008-1835 / CVE-2008-1833 / CVE-2008-1387 / CVE-2008-1100 / CVE-2008-0314 / CVE-2007-6595 / CVE-2007-6596)

This version upgrade of ClamAV to 0.93 fixes a long list of vulnerabilities. These vulnerabilities can lead to remote code execution, bypassing the scanning engine, remote denial-of-service, local file overwrite. (CVE-2008-1837, CVE-2008-1836, CVE-2008-1835, CVE-2008-1833, CVE-2008-1387, CVE-2008-1100, CVE-2008-0314, CVE-2007-6595, CVE-2007-6596)

The remote host is running the ClamAV antivirus client.

This version of ClamAV is vulnerable to a remote integer overflow due to a content-parsing flaw when handling malformed PE files.  An attacker exploiting this flaw would only need the ability to send a malformed attachment to a system protected by ClamAV.  Successful exploitation would result in the attacker overwriting critical memory blocks and either crashing the service or executing arbitrary code. 

ID	Name	Product	Family	Severity
37368	Mandriva Linux Security Advisory : clamav (MDVSA-2008:088)	Nessus	Mandriva Local Security Checks	critical
32048	SuSE 10 Security Update : clamav (ZYPP Patch Number 5200)	Nessus	SuSE Local Security Checks	critical
32047	openSUSE 10 Security Update : clamav (clamav-5199)	Nessus	SuSE Local Security Checks	critical
4321	ClamAV < 0.92.0 PE File Handling Integer Overflow (deprecated)	Nessus Network Monitor	Web Clients	high

Detections

Analytics

CVE-2007-6596

critical

Tenable Plugins

critical

critical

critical

high