Heap-based buffer overflow in the proxy_connect function in src/client.c in CVS 1.11 and 1.12 allows remote HTTP proxy servers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTTP response.

Array index error in the apply_rcs_change function in rcs.c in CVS 1.11.23 allows local users to gain privileges via an RCS file containing crafted delta fragment changes that trigger a heap-based buffer overflow.

Multiple cross-site scripting (XSS) vulnerabilities in osCommerce 2.2 Milestone 2 Update 060817 allow remote attackers to inject arbitrary web script or HTML via the (1) page parameter in the (a) banner_manager.php, (b) banner_statistics.php, (c) countries.php, (d) currencies.php, (e) languages.php, (f) manufacturers.php, (g) newsletters.php, (h) orders_status.php, (i) products_attributes.php, (j) products_expected.php, (k) reviews.php, (l) specials.php, (m) stats_products_purchased.php, (n) stats_products_viewed.php, (o) tax_classes.php, (p) tax_rates.php, or (q) zones.php scripts in /admin, and the (2) zpage parameter in (r) admin/geo_zones.php.

CVS 1.12 and earlier on Debian GNU/Linux, when using the repouid patch, allows remote attackers to bypass authentication via the pserver access method.

Buffer overflow in CVS before 1.11.20 allows remote attackers to execute arbitrary code.

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.

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).

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.