CVE-2025-71450

Description

inih before r63 contains a one-byte stack buffer under-read in ini_parse_stream() in ini.c that allows attackers to read abyss[-1] via an embedded NUL byte after an overlong line. Attackers can supply an INI file or string with a line of at least INI_MAX_LINE-1 bytes followed by a NUL byte, causing undefined behavior reported by memory sanitizers.

References

https://www.vulncheck.com/advisories/inih-before-r63-stack-buffer-under-read-in-ini-parse-stream-discard-loop

https://hackmd.io/@haindpwn/inih-long-line-discard-oob-read

https://github.com/benhoyt/inih/releases/tag/r63

https://github.com/benhoyt/inih/pull/206

https://github.com/benhoyt/inih/issues/223

https://github.com/benhoyt/inih/commit/8e06f6b77b5d4471bdc6d85ada81b67d37354a5c

https://github.com/benhoyt/inih/blob/r62/ini.c#L162-L169

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-211238

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS