SB2019042908 - Denial of service in ImageMagick

Description

This security bulletin contains information about 1 vulnerability.

1) Out-of-bounds read (CVE-ID: CVE-2019-11598)

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

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

The vulnerability allows a remote attacker to access sensitive information or cause a denial of service (DoS) condition.

The vulnerability exists due to a boundary condition in the "WritePNMImage()" function in the "coders/pnm.c" file. A remote attacker can send a specially crafted image file (related to SetGrayscaleImage in MagickCore/quantize.c.), trick the victim into opening it, trigger out-of-bounds read error, get access to sensitive information or cause a DoS condition on the targeted system.

Remediation

Install update from vendor's website.

References

• https://github.com/ImageMagick/ImageMagick/issues/1540
• https://github.com/ImageMagick/ImageMagick/commit/c111ed9b035532c2c81ea569f2d22fded9517287
• https://github.com/ImageMagick/ImageMagick6/commit/e2a21735e3a3f3930bd431585ec36334c4c2eb77