Ubuntu update for openexr



| Updated: 2025-04-23
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-15305
CVE-2020-15306
CWE-ID CWE-416
CWE-122
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

openexr (Ubuntu package)
Operating systems & Components / Operating system package or component

libopenexr24 (Ubuntu package)
Operating systems & Components / Operating system package or component

libopenexr23 (Ubuntu package)
Operating systems & Components / Operating system package or component

libopenexr22 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU31714

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-15305

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in "DeepScanLineInputFile::DeepScanLineInputFile()" in "IlmImf/ImfDeepScanLineInputFile.cpp". A local user can cause a denial of service (DoS) condition on the target system.

Mitigation

Update the affected package openexr to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 20.04

openexr (Ubuntu package): before 2.2.0-10ubuntu2.3

libopenexr24 (Ubuntu package): before 2.3.0-6ubuntu0.2

libopenexr23 (Ubuntu package): before 2.2.1-4.1ubuntu1.2

libopenexr22 (Ubuntu package): before 2.2.0-10ubuntu2.3

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4418-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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: #VU31715

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-15306

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

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in "getChunkOffsetTableSize()" in "IlmImf/ImfMisc.cpp". A local user can pass specially crafted data to the applicatoin, trigger heap-based buffer overflow and cause a denial of service conditon on the target system.

Mitigation

Update the affected package openexr to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 20.04

openexr (Ubuntu package): before 2.2.0-10ubuntu2.3

libopenexr24 (Ubuntu package): before 2.3.0-6ubuntu0.2

libopenexr23 (Ubuntu package): before 2.2.1-4.1ubuntu1.2

libopenexr22 (Ubuntu package): before 2.2.0-10ubuntu2.3

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4418-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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