CVE-2021-3477 Information

Description

There’s a flaw in OpenEXR’s deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1939159 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26956 https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html https://security.gentoo.org/glsa/202107-27

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5