CVE-2019-20433

CWE-125 — Out-of-bounds ReadCWE-170CWE-1357 documents7 sources
Severity
9.1CRITICAL
EPSS
0.6%
top 29.34%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
GNU Aspell
Timeline
PublishedJan 27
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HExploitability: 3.9 | Impact: 5.2

Affected Packages2 packages

▶NVDgnu/aspell< 0.60.8
▶Debianaspell< 0.60.7-3+3

🔴Vulnerability Details

3
GHSA
GHSA-qcm5-23xv-7r79: libaspell↗2022-05-24
▶
OSV
CVE-2019-20433: libaspell↗2020-01-27
▶
CVEList
CVE-2019-20433: libaspell↗2020-01-27
▶

📋Vendor Advisories

2
Red Hat
aspell: UCS-2 and UCS-4 null-terminated string handling OOB read↗2019-08-17
▶
Debian
CVE-2019-20433: aspell - libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string endi...↗2019
▶

💬Community

1
Bugzilla
CVE-2019-20433 aspell: UCS-2 and UCS-4 null-terminated string handling OOB read↗2019-10-22
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CVE-2019-20433 (CRITICAL CVSS 9.1) | libaspell.a in GNU Aspell before 0. | cvebase.io