SB2019121608 - Multiple vulnerabilities in Xfig

Description

This security bulletin contains information about 3 vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2019-19797)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the "read_colordef()" function in "read.c". A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

2) Out-of-bounds write (CVE-ID: CVE-2019-19746)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in "make_arrow". A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

3) Stack-based buffer overflow (CVE-ID: CVE-2019-19555)

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

The vulnerability exists due to a boundary error in the "read_textobject()" function in "read.c". A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://sourceforge.net/p/mcj/tickets/67/
• https://sourceforge.net/p/mcj/tickets/57/
• https://sourceforge.net/p/mcj/tickets/55/