SB2021061702 - Multiple vulnerabilities in OpenEXR
Published: June 17, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Heap-based buffer overflow (CVE-ID: N/A)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the Imf_2_5::copyIntoFrameBuffer() function. A remote attacker can pass specially crafted EXR file to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in Imf_2_5::PtrIStream::read. A remote attacker can pass specially crafted EXR file to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.5.7
- https://github.com/AcademySoftwareFoundation/openexr/commit/6006b2e34fc6457e96d3fb422479b02c19843a1a
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28051
- https://github.com/AcademySoftwareFoundation/openexr/pull/872
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28155