SB2019090214 - Denial of service in libarchive
Published: September 2, 2019 Updated: September 4, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2019-1000020)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper parsing of ISO9660 files. A remote attacker can persuade a user to access an ISO9660, trigger an infinite loop condition and perform a denial of service (DoS) attack.
2) Out-of-bounds read (CVE-ID: CVE-2019-1000019)
The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the header_bytes() function in archive_read_support_format_7zip.c when decompressing 7zip archives. A remote attacker can create a specially crafted 7zip file, trick the victim into opening it, trigger out-of-bounds read error and crash the affected application.
Remediation
Install update from vendor's website.