SB2019100314 - Amazon Linux AMI update for oniguruma

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Main Vulnerability Database SB2019100314

SB2019100314 - Amazon Linux AMI update for oniguruma

Published: October 3, 2019

Security Bulletin ID SB2019100314
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2019-13224)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the onig_new_deluxe() function in regext.c in Oniguruma library when processing regular expressions. A remote attacker can pass specially crafted input to the application using the vulnerable library version, trigger use-after-free error and perform denial of service attack or execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


2) NULL pointer dereference (CVE-ID: CVE-2019-13225)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dreference error in match_at() function  in regcomp.c in Oniguruma library. A remote attacker can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References