Description: When curl is asked to pass along the host name to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that host name can be is 255 bytes. If the host name is detected to be longer, curl switches to local name resolving and instead passes on the resolved address only to the proxy. Due to a bug, the local variable that means "let the host resolve the name" could get the wrong value during a slow SOCKS5 handshake, and contrary to the intention, copy the too long host name to the target buffer instead of copying just the resolved address there. Broken commit info: https://github.com/curl/curl/commit/4a4b63daaa Bugfix commit info: https://github.com/curl/curl/commit/fb4415d8aee6c1 https://curl.se/docs/CVE-2023-38545_patches.zip
https://anas.openanolis.cn/errata/detail/ANSA-2023:0563 公告已发布