SB2020010703 - Multiple vulnerabilities in ImageMagick

Description

This security bulletin contains information about 2 vulnerabilities.

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

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green

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)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green

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.

Remediation

Install update from vendor's website.

References

• https://github.com/ImageMagick/ImageMagick/issues/1562
• https://lists.debian.org/debian-lts-announce/2019/12/msg00033.html
• https://github.com/ImageMagick/ImageMagick/issues/1561