PT-2020-6216 · Ilmbase+4 · Openexr+4

Samuel Groß · Published 2020-04-14 · Updated 2023-01-09 · CVE-2020-11759

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 The issue is related to integer overflows in CompositeDeepScanLine::Data::handleDeepFrameBuffer and readSampleCountForLineBlock functions, allowing an attacker to write to an out-of-bounds pointer. This can lead to a denial of service. The vulnerability can be exploited by a remote attacker.

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 CompositeDeepScanLine::Data::handleDeepFrameBuffer and readSampleCountForLineBlock functions until a patch is available.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALT-PU-2020-3135

ALT-PU-2020-3136

ALT-PU-2021-1312

ALT-PU-2021-1313

AZL-44139

BDU:2021-03609

CVE-2020-11759

DLA-2358-1

DSA-4755-1

MGASA-2020-0189

OESA-2021-1268

USN-4339-1

Affected Products

Alt Linux

Linuxmint

Openexr

Ubuntu

Itunes

References · 61

• 🔥 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://nvd.nist.gov/vuln/detail/CVE-2020-11759 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4KFGDQG5PVYAU7TS5MZ7XCS6EMPVII3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3598 · Security Note
• https://ubuntu.com/security/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://osv.dev/vulnerability/AZL-44139 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 · Vendor Advisory
• https://usn.ubuntu.com/4339-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4339-1 · Vendor Advisory
• https://debian.org/security/2020/dsa-4755 · Vendor Advisory