Vulnerability Name:

CVE-2021-26945 (CCN-203256)

Assigned:2021-06-04
Published:2021-06-04
Updated:2022-10-19
Summary:An integer overflow leading to a heap-buffer overflow was found in OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-190
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-26945

Source: CCN
Type: Red Hat Bugzilla – Bug 1947591
CVE-2021-26945) - CVE-2021-26945 OpenEXR: Integer-overflow

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1947591

Source: XF
Type: UNKNOWN
openexr-cve202126945-dos(203256)

Source: CCN
Type: OpenEXR GIT Repository
exrcheck: use 64 bit integer math to prevent pointer overflows #930

Vulnerable Configuration:Configuration 1:
  • cpe:/a:openexr:openexr:*:*:*:*:*:*:*:* (Version < 3.0.1)

    • Configuration CCN 1:
  • cpe:/a:openexr:openexr:3.0.0:beta:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    openexr openexr *
    openexr openexr 3.0.0 beta