CVE-2019-20433

CRITICAL

9.1

CVSS Score

Published: January 27, 2020 at 02:03 PM UTC

Updated: June 17, 2026 at 02:30 AM UTC

1 product affected across 1 vendorAspell

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Severity

CRITICAL9.1

Exploit prediction

EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Aspell · Gnu

95%

v < 0.60.8

Affected range stops below 0.60.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

http://aspell.net/buffer-overread-ucs.txt

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

http://aspell.net/buffer-overread-ucs.txt

CVSS

9.1CRITICAL[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-125

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