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SUSE SLED12 / SLES12 Security Update : openexr (SUSE-SU-2021:3843-1)

medium Nessus Plugin ID 155802

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLED12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3843-1 advisory.

 - There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability. (CVE-2021-3477)

 - An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits.
 This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with application stability or lead to other attack paths. (CVE-2021-3933)

 - In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as `float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y;` and `chroma.green.y * (X + Z))) / d;` but the divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition which could affect the availability of programs linked with OpenEXR. (CVE-2021-3941)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected libIlmImf-Imf_2_1-21, libIlmImf-Imf_2_1-21-32bit, openexr and / or openexr-devel packages.

See Also

https://bugzilla.suse.com/1184353

https://bugzilla.suse.com/1192498

https://bugzilla.suse.com/1192556

https://lists.suse.com/pipermail/sle-updates/2021-December/020879.html

https://www.suse.com/security/cve/CVE-2021-3477

https://www.suse.com/security/cve/CVE-2021-3933

https://www.suse.com/security/cve/CVE-2021-3941

Plugin Details

Severity: Medium

ID: 155802

File Name: suse_SU-2021-3843-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 12/2/2021

Updated: 7/13/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-3933

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2021-3941

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libilmimf-imf_2_1-21, p-cpe:/a:novell:suse_linux:libilmimf-imf_2_1-21-32bit, p-cpe:/a:novell:suse_linux:openexr, p-cpe:/a:novell:suse_linux:openexr-devel, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/1/2021

Vulnerability Publication Date: 3/31/2021

Reference Information

CVE: CVE-2021-3477, CVE-2021-3933, CVE-2021-3941

SuSE: SUSE-SU-2021:3843-1