libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols.

Summary

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.

Timeline

1. Aug 3, 2021, 1:22 PM UTCCVE published
2. Aug 4, 2024, 12:47 AM UTCRecord last updated

Affected versions

• n/a n/a

  Version range not reported

References 6