SB2018022726 - Fedora 27 update for leptonica, mingw-leptonica

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Path traversal (CVE-ID: CVE-2017-18196)

The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists due to improper security restrictions. A local attacker can access a directory in the /tmp directory tree and gain access to potentially sensitive information, including arbitrary files.

2) Command injection (CVE-ID: CVE-2018-3836)

The vulnerability allows a remote attacker to inject arbitrary commands.

The weakness exists in the gplotMakeOutput function due to insufficient validation of user-supplied input. A local attacker can submit a specially crafted gplot rootname argument, inject arbitrary commands and execute arbitrary code with system or root privileges.

Successful exploitation of the vulnerabiiity may result in system compromise.

3) 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.

4) 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.

Remediation

Install update from vendor's website.

References

• https://bodhi.fedoraproject.org/updates/FEDORA-2018-cbf621a53c