CVE number – CVE-2019-14980
A vulnerability in ImageMagick could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted system.The vulnerability is due to improper memory operations in the UnmapBlob function of the affected software.
An attacker could exploit this vulnerability by persuading a user to access a file that submits malicious input to the affected software. A successful exploit could allow the attacker to cause the system to stop responding, resulting in a DoS condition.ImageMagick confirmed the vulnerability and released updated software.
- To exploit this vulnerability, the attacker may use misleading language or instructions to persuade a user to access a file that submits malicious input to the affected software.
- Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to use an unprivileged account when browsing the Internet.
Administrators are advised to monitor critical systems.
Users are advised not to open email messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in email messages are safe, they are advised not to open them.
Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.
- ImageMagick Studio has released a bug report at the following link: Use after free in magick/blob.c #43