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AUSCERT External Security Bulletin Redistribution
ESB-2023.4246
USN-6259-1: Open-iSCSI vulnerabilities
28 July 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Open-iSCSI
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2020-17437 CVE-2020-13988 CVE-2020-13987
Original Bulletin:
https://ubuntu.com/security/notices/USN-6259-1
Comment: CVSS (Max): 8.2 CVE-2020-17437 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)
CVSS Source: NIST
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
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USN-6259-1: Open-iSCSI vulnerabilities
27 July 2023
Several security issues were fixed in Open-iSCSI.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 ESM
o Ubuntu 16.04 ESM
Packages
o open-iscsi - Open Source iSCSI implementation
Details
Jos Wetzels, Stanislav Dashevskyi, and Amine Amri discovered that
Open-iSCSI incorrectly handled certain checksums for IP packets.
An attacker could possibly use this issue to expose sensitive information.
( CVE-2020-13987 )
Jos Wetzels, Stanislav Dashevskyi, Amine Amri discovered that
Open-iSCSI incorrectly handled certain parsing TCP MSS options.
An attacker could possibly use this issue to cause a crash or cause
unexpected behavior. ( CVE-2020-13988 )
Amine Amri and Stanislav Dashevskyi discovered that Open-iSCSI
incorrectly handled certain TCP data. An attacker could possibly
use this issue to expose sensitive information. ( CVE-2020-17437 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o open-iscsi - 2.0.874-7.1ubuntu6.4
Ubuntu 18.04
o open-iscsi - 2.0.874-5ubuntu2.11+esm1
Available with Ubuntu Pro
Ubuntu 16.04
o open-iscsi - 2.0.873+git0.3b4b4500-14ubuntu3.7+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-13988
o CVE-2020-13987
o CVE-2020-17437
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