SB2018021910 - Multiple vulnerabilities in Leptonica

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2018-7247)

The vulnerability allows a remote unauthenticated attacker to execute arbitrary code on the target system.

The weakness exists in the pixHtmlViewer function due to buffer overflow. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may result in system compromise.

2) Stack-based buffer overflow (CVE-ID: CVE-2018-7186)

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the gplotRead and ptaReadStream functions due to stack-based buffer overflow. A remote attacker can trigger memory corruption and cause the service to crash.

Remediation

Install update from vendor's website.

References

• https://github.com/DanBloomberg/leptonica/commit/c1079bb8e77cdd426759e466729917ca37a3ed9f
• https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a