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CVE-2021-23169

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions...

8.8 HighFix available

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.29%Up 0.8 points since Jun 9, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
CVE-2021-23169
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
CVE-2021-23169
Weakness
CWE-787
Updated
2026-11-02
EUVDEUVD-2021-10279 No score

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
EUVD-2021-10279
Updated
2026-11-03
GitHub AdvisoriesGHSA-f3pg-chcp-5ff8 8.8

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions...

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
GHSA-f3pg-chcp-5ff8
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-119, CWE-787
Updated
2026-11-02
OSVALPINE-CVE-2021-23169 8.8

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
ALPINE-CVE-2021-23169
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSVAZL-44256 8.8

CVE-2021-23169 affecting package OpenEXR 2.3.0-6

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
AZL-44256
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-05
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OSV 8.8

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
CVE-2021-23169
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2021-23169 8.8

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
DEBIAN-CVE-2021-23169
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2021-1238 8.8

OpenEXR security update

OpenEXR is a high dynamic-range (HDR) image file format originally developed by Industrial Light & Magic for use in computer imaging applications.

Security Fix(es):

An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR. This is a different flaw from CVE-2021-23215.(CVE-2021-26260)

An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.(CVE-2021-23215)

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.(CVE-2021-23169)

Record
OESA-2021-1238
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2021-23169 8.8

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Record
UBUNTU-CVE-2021-23169
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2021-0326 No score

Updated openexr packages fix security vulnerabilities

Updated openexr packages fix security vulnerabilities:

It was discovered that OpenEXR incorrectly handled certain malformed EXR image files. If a user were tricked into opening a crafted EXR image file, a remote attacker could cause a denial of service, or possibly execute arbitrary code (CVE-2021-3474, CVE-2021-3475, CVE-2021-3476, CVE-2021-3477, CVE-2021-3478, CVE-2021-3479, CVE-2021-3598, CVE-2021-3605, CVE-2021-20296, CVE-2021-23169, CVE-2021-23215, CVE-2021-26260).

Record
MGASA-2021-0326
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openexr
Alpine:v3.15
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.16
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.17
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.18
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.19
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.20
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.21
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.22
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.23
 before 3.1.1-r0
3.1.1-r0
openexr
Alpine:v3.24
 before 3.1.1-r0
3.1.1-r0
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Affected packages
PackageAffectedFixed
OpenEXR
Azure Linux:3
 through 2.3.0-6 None known
openexr
Debian:12
 before 2.5.4-2
2.5.4-2
openexr
Debian:13
 before 2.5.4-2
2.5.4-2
openexr
Debian:14
 before 2.5.4-2
2.5.4-2
openexr
Mageia:7
From an advisory covering 12 CVEs
 before 2.3.0-2.4.mga7
2.3.0-2.4.mga7
openexr
Mageia:8
From an advisory covering 12 CVEs
 before 2.5.7-1.mga8
2.5.7-1.mga8
OpenEXR
openEuler:20.03-LTS-SP1
From an advisory covering 3 CVEs
 before 2.2.0-20.oe1
2.2.0-20.oe1
openexr
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
2.2.1-4.1ubuntu12.3.0-62.3.0-6build12.3.0-6ubuntu0.12.3.0-6ubuntu0.2
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2.3.0-6ubuntu0.32.3.0-6ubuntu0.52.3.0-6ubuntu0.5+esm12.3.0-6ubuntu0.5+esm2
 None known

History

History
RecordedChangedSources
affected
factsOSV
affected, aliases, referencesOSV
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-23169 is a high vulnerability (CVSS 8.8) in Academysoftwarefoundation Openexr, published June 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.29%, the 83rd percentile. Fixed in openexr 3.1.1-r0.

References

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