CVE-2019-20433

CRITICAL 9.1CVE-2019-20433 · Published 27/01/2020 · updated 17/06/2026

In short

CVE-2019-20433 is a CRITICAL (CVSS 9.1) vulnerability affecting aspell (gnu).
Chance of exploitation in the next 30 days (EPSS): 1.7%, higher than 77.8% of all vulnerabilities.
Fix: update to 0.60.8 or later.

Package	Affected versions	Patched versions
aspell gnu	`< 0.60.8`	`0.60.8`

Description

libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.

References

aspell.net/buffer-overread-ucs.txt · Vendor Advisory

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