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amazonAmazonALAS2-2020-1499
HistoryOct 22, 2020 - 5:15 p.m.

Medium: OpenEXR

2020-10-2217:15:00
alas.aws.amazon.com
9

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.9 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

36.0%

Issue Overview:

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read during Huffman uncompression, as demonstrated by FastHufDecoder::refill in ImfFastHuf.cpp. (CVE-2020-11761)

An issue was discovered in OpenEXR before 2.4.1. There is an std::vector out-of-bounds read and write, as demonstrated by ImfTileOffsets.cpp. (CVE-2020-11763)

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in ImfMisc.cpp. (CVE-2020-11764)

Affected Packages:

OpenEXR

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update OpenEXR to update your system.

New Packages:

aarch64:  
    OpenEXR-1.7.1-8.amzn2.0.1.aarch64  
    OpenEXR-devel-1.7.1-8.amzn2.0.1.aarch64  
    OpenEXR-libs-1.7.1-8.amzn2.0.1.aarch64  
    OpenEXR-debuginfo-1.7.1-8.amzn2.0.1.aarch64  
  
i686:  
    OpenEXR-1.7.1-8.amzn2.0.1.i686  
    OpenEXR-devel-1.7.1-8.amzn2.0.1.i686  
    OpenEXR-libs-1.7.1-8.amzn2.0.1.i686  
    OpenEXR-debuginfo-1.7.1-8.amzn2.0.1.i686  
  
src:  
    OpenEXR-1.7.1-8.amzn2.0.1.src  
  
x86_64:  
    OpenEXR-1.7.1-8.amzn2.0.1.x86_64  
    OpenEXR-devel-1.7.1-8.amzn2.0.1.x86_64  
    OpenEXR-libs-1.7.1-8.amzn2.0.1.x86_64  
    OpenEXR-debuginfo-1.7.1-8.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2020-11761, CVE-2020-11763, CVE-2020-11764

Mitre: CVE-2020-11761, CVE-2020-11763, CVE-2020-11764

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.9 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

36.0%