SB2020121580 - Ubuntu update for imagemagick

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2019-19948)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due insufficient validation of row and column sizes in the "WriteSGIImage" function of coders/sgi.c. A remote attacker can trigger heap-based buffer overflow and cause a denial of service condition on the target system.

2) Out-of-bounds read (CVE-ID: CVE-2019-19949)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due missing length check prior pointer dereference in the "WritePNGImage" function of coders/png.c, related to Magick_png_write_raw_profile and LocaleNCompare. A remote attacker can cause a denial of service condition on the target system.

3) Division by zero (CVE-ID: CVE-2020-27560)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a division by zero error within . A remote attacker can pass specially crafted data to the application and crash it.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-4670-1