SB2022092629 - Gentoo update for HarfBuzz

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Main Vulnerability Database SB2022092629

SB2022092629 - Gentoo update for HarfBuzz

Published: September 26, 2022

Security Bulletin ID SB2022092629
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

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

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2021-45931)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the hb_bit_set_invertible_t::set() function. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.


2) Integer overflow (CVE-ID: CVE-2022-33068)

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

The vulnerability exists due to integer overflow in hb-ot-shape-fallback.cc. A remote attacker can pass specially crafted data to the application, trigger integer overflow and crash the application.


Remediation

Install update from vendor's website.

References