#VU51929 Integer overflow in OpenEXR


Published: 2021-04-06 | Updated: 2021-05-18

Vulnerability identifier: #VU51929

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3476

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenEXR
Client/Desktop applications / Multimedia software

Vendor: OpenEXR

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) on the target system.

The vulnerability exists due to integer overflow in B44 uncompression functionality. A remote attacker can pass specially crafted file, trigger integer overflow and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenEXR: 1.0.4 - 2.5.5


External links
http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24787
http://bugzilla.redhat.com/show_bug.cgi?id=1939145
http://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.4.3


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability