PT-2019-5904 · Oniguruma+8 · Oniguruma+8
Manhnd
·
Published
2019-11-06
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Updated
2025-09-29
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CVE-2019-19203
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Oniguruma versions prior to 6.9.4 rc2
Description
The issue is related to a heap-based buffer over-read in the
gb18030 mbc enc len function, located in the gb18030.c file. This occurs because a UChar pointer is dereferenced without checking if it has passed the end of the matched string. The vulnerability can be exploited by a remote attacker to cause a denial of service.Recommendations
For Oniguruma versions prior to 6.9.4 rc2, update to version 6.9.4 rc2 or later to resolve the issue. As a temporary workaround, consider restricting the use of the
gb18030 mbc enc len function until a patch is available.Exploit
Fix
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Oniguruma
Red Hat
Rocky Linux
Suse
Ubuntu