Out-of-bounds Read Affecting libonig package, versions *


medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 1.1% (85th percentile)
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NVD
9.8 critical
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Red Hat
7.5 high

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  • Snyk ID SNYK-UBUNTU1804-LIBONIG-534636
  • published 17 Nov 2019
  • disclosed 17 Nov 2019

How to fix?

There is no fixed version for Ubuntu:18.04 libonig.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libonig package and not the libonig package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

An integer overflow in the search_in_range function in regexec.c in Oniguruma 6.x before 6.9.4_rc2 leads to an out-of-bounds read, in which the offset of this read is under the control of an attacker. (This only affects the 32-bit compiled version). Remote attackers can cause a denial-of-service or information disclosure, or possibly have unspecified other impact, via a crafted regular expression.