ClamAV before 0.91.2, as used in Kolab Server 2.0 through 2.2beta1 and other products, allows remote attackers to cause a denial of service (application crash) via (1) a crafted RTF file, which triggers a NULL dereference in the cli_scanrtf function in libclamav/rtf.c; or (2) a crafted HTML document with a data: URI, which triggers a NULL dereference in the cli_html_normalise function in libclamav/htmlnorm.c. NOTE: some of these details are obtained from third party information.
docs.info.apple.com/article.html?artnum=307562
kolab.org/security/kolab-vendor-notice-17.txt
lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
secunia.com/advisories/26530
secunia.com/advisories/26552
secunia.com/advisories/26654
secunia.com/advisories/26674
secunia.com/advisories/26683
secunia.com/advisories/26751
secunia.com/advisories/26822
secunia.com/advisories/26916
secunia.com/advisories/29420
security.gentoo.org/glsa/glsa-200709-14.xml
securityreason.com/securityalert/3054
sourceforge.net/project/shownotes.php?release_id=533658
www.debian.org/security/2007/dsa-1366
www.mandriva.com/security/advisories?name=MDKSA-2007:172
www.novell.com/linux/security/advisories/2007_18_sr.html
www.securityfocus.com/bid/25398
www.trustix.org/errata/2007/0026/
www.vupen.com/english/advisories/2007/2952
www.vupen.com/english/advisories/2008/0924/references
exchange.xforce.ibmcloud.com/vulnerabilities/36173
exchange.xforce.ibmcloud.com/vulnerabilities/36177
www.redhat.com/archives/fedora-package-announce/2007-September/msg00104.html
wwws.clamav.net/bugzilla/show_bug.cgi?id=582
wwws.clamav.net/bugzilla/show_bug.cgi?id=611