PT-2020-6213 · Openexr+5 · Openexr+5

Xingwei Lin · Published 2020-04-14 · Updated 2023-01-09 · CVE-2020-11765

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenEXR versions prior to 2.4.1

Description An issue in OpenEXR is related to an off-by-one error in the use of the ImfXdr.h read function by DwaCompressor::Classifier::Classifier, leading to an out-of-bounds read. This could potentially allow a remote attacker to cause a denial of service.

Recommendations For versions prior to 2.4.1, update to version 2.4.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the DwaCompressor::Classifier::Classifier function until a patch is available.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

CWE-193

Related Identifiers

ALT-PU-2020-3135

ALT-PU-2020-3136

ALT-PU-2021-1312

ALT-PU-2021-1313

AZL-44829

BDU:2021-03603

CVE-2020-11765

DLA-2358-1

DSA-4755-1

MGASA-2020-0189

OESA-2021-1268

OPENSUSE-SU-2020:0682-1

OPENSUSE-SU-2020_0682-1

SUSE-SU-2020:1293-1

USN-4339-1

Affected Products

Alt Linux

Linuxmint

Openexr

Suse

Ubuntu

Itunes

References · 81

• 🔥 https://github.com/xiaoqx/pocs/blob/master/openexr.md · Exploit
• 🔥 https://bugs.chromium.org/p/project-zero/issues/detail?id=1987 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-11763 · Security Note
• https://ubuntu.com/security/CVE-2018-18444 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4KFGDQG5PVYAU7TS5MZ7XCS6EMPVII3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11759 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-11765 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11765 · Security Note
• https://ubuntu.com/security/CVE-2020-11759 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-11761 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11762 · Security Note
• https://ubuntu.com/security/CVE-2020-11764 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4339-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:0682-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11764 · Security Note