Multiple vulnerabilities in OpenEXR



Published: 2020-12-09 | Updated: 2021-03-03
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-16588
CVE-2020-16587
CVE-2020-16589
CWE-ID CWE-476
CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
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OpenEXR
Client/Desktop applications / Multimedia software

Vendor OpenEXR

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU51175

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-16588

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in generatePreview in makePreview.cpp. A remote attacker can use a specially crafted EXR file and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenEXR: 2.3.0

External links

http://github.com/AcademySoftwareFoundation/openexr/commit/74504503cff86e986bac441213c403b0ba28d58f
http://github.com/AcademySoftwareFoundation/openexr/issues/493


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.

2) Heap-based buffer overflow

EUVDB-ID: #VU51176

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-16587

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in chunkOffsetReconstruction in ImfMultiPartInputFile.cpp. A remote attacker can use a specially crafted EXR file, trigger heap-based buffer overflow and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenEXR: 2.3.0

External links

http://github.com/AcademySoftwareFoundation/openexr/commit/8b5370c688a7362673c3a5256d93695617a4cd9a
http://github.com/AcademySoftwareFoundation/openexr/issues/491


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.

3) Heap-based buffer overflow

EUVDB-ID: #VU51177

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-16589

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in writeTileData in ImfTiledOutputFile.cpp. A remote attacker can use a specially crafted EXR file, trigger heap-based buffer overflow and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenEXR: 2.3.0

External links

http://github.com/AcademySoftwareFoundation/openexr/commit/6bb36714528a9563dd3b92720c5063a1284b86f8
http://github.com/AcademySoftwareFoundation/openexr/issues/494


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.



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