Vulnerability Description
A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number of bits in memory. When allocating a buffer device, it relies on an init_device_procs defined for the device that uses it as a prototype that depends upon the number of bits per pixel. For bpp > 64, mem_x_device is used and does not have an init_device_procs defined. This flaw allows an attacker to parse a large number of bits (more than 64 bits per pixel), which triggers a NULL pointer dereference flaw, causing an application to crash.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Artifex | Ghostscript | 9.55.0 |
| Fedoraproject | Fedora | 35 |
Related Weaknesses (CWE)
References
- http://git.ghostscript.com/?p=ghostpdl.git%3Bh=ae1061d948d88667bdf51d47d918c4684
- https://bugs.ghostscript.com/show_bug.cgi?id=704945ExploitIssue TrackingMailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=2095261Issue TrackingPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202211-11Third Party Advisory
- https://security.gentoo.org/glsa/202309-03
- http://git.ghostscript.com/?p=ghostpdl.git%3Bh=ae1061d948d88667bdf51d47d918c4684
- https://bugs.ghostscript.com/show_bug.cgi?id=704945ExploitIssue TrackingMailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=2095261Issue TrackingPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202211-11Third Party Advisory
- https://security.gentoo.org/glsa/202309-03
FAQ
What is CVE-2022-2085?
CVE-2022-2085 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number of bits in memory. When allocating a buffer device, it relies on an init_device_p...
How severe is CVE-2022-2085?
CVE-2022-2085 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-2085?
Check the references section above for vendor advisories and patch information. Affected products include: Artifex Ghostscript, Fedoraproject Fedora.