CVE-2021-36159
CRITICAL 9.1EPSS 2.6%
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.
- CVSS v3.1
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS v2.0
- 6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P - EPSS
- 2.64% chance of exploitation in the next 30 days, 84th percentile
- Published
- 2021-08-03
- Updated
- 2024-08-04