SB2017060401 - Denial of service in QPDF
Published: June 4, 2017
Security Bulletin ID
SB2017060401
Severity
Low
Patch available
YES
Number of vulnerabilities
4
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2017-11624)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the QPDFTokenizer::resolveLiteral function in QPDFTokenizer.cc due to infinite loop after two consecutive calls to QPDFObjectHandle::parseInterna. A remote attacker can trick the victim into opening a specially crafted file, trigger stack consumption and cause the service to crash.
2) Resource exhaustion (CVE-ID: CVE-2017-11625)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the QPDF::resolveObjectsInStream function in QPDF.cc due to infinite loop. A remote attacker can trick the victim into opening a specially crafted file, trigger stack consumption and cause the service to crash.
3) Resource exhaustion (CVE-ID: CVE-2017-11626)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the QPDFTokenizer::resolveLiteral function in QPDFTokenizer.cc due to infinite loop after four consecutive calls to QPDFObjectHandle::parseInterna. A remote attacker can trick the victim into opening a specially crafted file, trigger stack consumption and cause the service to crash.
4) Resource exhaustion (CVE-ID: CVE-2017-11627)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the PointerHolder function in PointerHolder.hh due to infinite loop. A remote attacker can trick the victim into opening a specially crafted file, trigger stack consumption and cause the service to crash.
Remediation
Install update from vendor's website.