SB2015061101 - Ubuntu update for libgd2
Published: June 11, 2015
Security Bulletin ID
SB2015061101
Severity
High
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2007-0455)
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The weakness exists in the gdImageStringFTEx function in gdft.c due to buffer overflow. A remote attacker can cause the service to crash or execute arbitrary code via a specially crafted string with a JIS encoded font.
Successful exploitation of the vulnerability may result in system comprmise.
2) Infinite loop (CVE-ID: CVE-2007-2756)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the gdPngReadData function due to CPU consumption. A remote attacker can trcik the victim into opening a specially crafted PNG image with truncated data, which causes infinite loop in the png_read_info function in libpng, and cause the service to crash.
Remediation
Install update from vendor's website.