CVE-2021-36159

https://notcve.org/view.php?id=CVE-2021-36159

libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols. The FTP passive mode implementation allows an out-of-bounds read because strtol is used to parse the relevant numbers into address bytes. It does not check if the line ends prematurely. If it does, the for-loop condition checks for the '\0' terminator one byte too late. libfetch versiones anteriores al 26-07-2021, como se usa en apk-tools, xbps, y otros productos, maneja inapropiadamente las cadenas numéricas para los protocolos FTP y HTTP. La implementación del modo pasivo de FTP permite una lectura fuera de límites porque strtol se usa para analizar los números relevantes en bytes de dirección. • https://github.com/freebsd/freebsd-src/commits/main/lib/libfetch https://gitlab.alpinelinux.org/alpine/apk-tools/-/issues/10749 https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810 • CWE-125: Out-of-bounds Read •