Nixpkgs security tracker
6.5 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): Required (R)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): Required (R)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): High (H)
Activity log
- Created suggestion
OpenEXR has a signed integer overflow in generic_unpack() when parsing EXR files with crafted negative dataWindow.min.x
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.4.0 to before 3.4.9, a missing bounds check on the dataWindow attribute in EXR file headers allows an attacker to trigger a signed integer overflow in generic_unpack(). By setting dataWindow.min.x to a large negative value, OpenEXRCore computes an enormous image width, which is later used in a signed integer multiplication that overflows, causing the process to terminate with SIGILL via UBSan. This vulnerability is fixed in 3.4.9.
References
Affected products
- ==>= 3.4.0, < 3.4.9
Matching in nixpkgs
pkgs.openexr
High dynamic-range (HDR) image file format
pkgs.openexr_2
High dynamic-range (HDR) image file format
pkgs.openexrid-unstable
OpenEXR files able to isolate any object of a CG image with a perfect antialiazing
-
nixos-unstable 2017-09-17
- nixpkgs-unstable 2017-09-17
- nixos-unstable-small 2017-09-17
-
nixos-25.11 2017-09-17
- nixos-25.11-small 2017-09-17
- nixpkgs-25.11-darwin 2017-09-17
Package maintainers
-
@paperdigits Mica Semrick <mica@silentumbrella.com>
-
@guibou Guillaume Bouchard <guillaum.bouchard@gmail.com>