Multiple unknown vulnerabilities in viewcvs before 0.9.2, when exporting a repository as a tar archive, does not properly implement the hide_cvsroot and forbidden settings, which could allow remote attackers to gain sensitive information.

Format string vulnerability in wrapper.c in CVS 1.12.x through 1.12.8, and 1.11.x through 1.11.16 allows remote attackers with CVSROOT commit access to cause a denial of service (application crash) and possibly execute arbitrary code via format string specifiers in a wrapper line.

Multiple cross-site scripting (XSS) vulnerabilities in (1) main.c and (2) login.c for CVSTrac before 1.1.5 allow remote attackers to inject arbitrary HTML and web script.

CVS 1.12 and earlier on Debian GNU/Linux does not properly handle when a mapping for the current repository does not exist in the cvs-repouids file, which allows remote attackers to cause a denial of service (server crash).

filediff in CVStrac allows remote attackers to execute arbitrary commands via shell metacharacters in rcsinfo.

Multiple cross-site scripting (XSS) vulnerabilities in ViewCVS 0.9.2 allow remote attackers to inject arbitrary HTML and web script via certain error messages.

Integer overflow in the "Max-dotdot" CVS protocol command (serve_max_dotdot) for CVS 1.12.x through 1.12.8, and 1.11.x through 1.11.16, may allow remote attackers to cause a server crash, which could cause temporary data to remain undeleted and consume disk space.

Double free vulnerability for the error_prog_name string in CVS 1.12.x through 1.12.8, and 1.11.x through 1.11.16, may allow remote attackers to execute arbitrary code.

serve_notify in CVS 1.12.x through 1.12.8, and 1.11.x through 1.11.16, does not properly handle empty data lines, which may allow remote attackers to perform an "out-of-bounds" write for a single byte to execute arbitrary code or modify critical program data.

CVS 1.12.x through 1.12.8, and 1.11.x through 1.11.16, does not properly handle malformed "Entry" lines, which prevents a NULL terminator from being used and may lead to a denial of service (crash), modification of critical program data, or arbitrary code execution.