CVE-2018-7998 Null dereference in n/a

What is CVE-2018-7998?

CVE-2018-7998 is a high-severity vulnerability in Debian Debian Linux, published on 9 Mar 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

In libvips before 8.6.3, a NULL function pointer dereference vulnerability was found in the vips_region_generate function in region.c, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted image file. This occurs because of a race condition involving a failed delayed load and other worker threads.

Weakness: CWE-476, CWE-362

Which versions are affected by CVE-2018-7998?

It affects 2 products.

Products include Debian Debian Linux, Libvips Libvips.

How do I fix CVE-2018-7998?

Upgrade to a fixed version.

Is CVE-2018-7998 being exploited?

There is no known exploitation of CVE-2018-7998 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2018-7998, DLA-1306-1, GHSA-qvpx-7hqq-8g4f, UBUNTU-CVE-2018-7998.