SB2019081809 - Multiple vulnerabilities in DjVuLibre

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Main Vulnerability Database SB2019081809

SB2019081809 - Multiple vulnerabilities in DjVuLibre

Published: August 18, 2019 Updated: November 21, 2019

Security Bulletin ID SB2019081809
Severity
Low
Patch available
NO
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2019-15142)

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

The vulnerability exists due to a boundary error when processing DJVU files in DjVmDir.cpp in DjVuLibre. A remote attacker can create a specially crafted DJVU, trick the victim into opening it, trigger heap-based buffer overflow and crash the application using the affected library.


2) Infinite loop (CVE-ID: CVE-2019-15143)

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

The vulnerability exists due to infinite loop in bitmap reader component in DjVuLibre, related to libdjvu/DjVmDir.cpp and libdjvu/GBitmap.cpp files. A remote attacker can create a specially crafted file, pass it to the application using the affected library and perform denial of service conditions.


3) Infinite loop (CVE-ID: CVE-2019-15144)

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

The vulnerability exists due to infinite loop in the sorting functionality (aka GArrayTemplate::sort) within the libdjvu/GContainer.h in DjVuLibre. A remote attacker can consume excessive system resources with a specially crafted BMP file.


4) Out-of-bounds read (CVE-ID: CVE-2019-15145)

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

The vulnerability exists due to a boundary condition in the JB2Dict::JB2Codec::get_direct_context in libdjvu/JB2Image.h within DjVuLibre due to a missing zero-bytes check in libdjvu/GBitmap.h. A remote attacker can create a specially crafted JB2 file, trick the victim into opening it, trigger out-of-bounds read error and crash the application.


5) NULL pointer dereference (CVE-ID: CVE-2019-18804)

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

The vulnerability exists due to a NULL pointer dereference error in the function DJVU::filter_fv at IW44EncodeCodec.cpp. A remote attacker can perform a denial of service (DoS) attack.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References