SB2018072429 - Null pointer dereference in php7 (Alpine package)
Published: July 24, 2018
Security Bulletin ID
SB2018072429
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Null pointer dereference (CVE-ID: CVE-2018-19396)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to NULL pointer dereference condition that exists in the ext/standard/var_unserializer.c file when an unserialize call is made for the com, dotnet, or variant class. A remote attacker can send a specially crafted request that submits malicious input, trigger a NULL pointer dereference condition and cause the software to crash.
Remediation
Install update from vendor's website.