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AUSCERT External Security Bulletin Redistribution
ESB-2022.4700
USN-5628-1: etcd vulnerabilities
23 September 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: etcd
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2020-15114 CVE-2020-15113 CVE-2020-15112
CVE-2020-15106
Original Bulletin:
https://ubuntu.com/security/notices/USN-5628-1
Comment: CVSS (Max): 7.7 CVE-2020-15114 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
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USN-5628-1: etcd vulnerabilities
22 September 2022
Several security issues were fixed in etcd.
Releases
o Ubuntu 20.04 LTS
Packages
o etcd - Transitional package for etcd-client and etcd-server
Details
It was discovered that etcd incorrectly handled certain specially crafted
WAL files. An attacker could possibly use this issue to cause a denial of
service. ( CVE-2020-15106 , CVE-2020-15112 )
It was discovered that etcd incorrectly handled directory permissions when
trying to create a directory that exists already. An attacker could
possibly use this issue to obtain sensitive information. ( CVE-2020-15113 )
It was discovered that etcd incorrectly handled endpoint setup. An
attacker could possibly use this issue to cause a denial of
service. ( CVE-2020-15114 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o etcd-server - 3.2.26+dfsg-6ubuntu0.1
o etcd-client - 3.2.26+dfsg-6ubuntu0.1
o etcd - 3.2.26+dfsg-6ubuntu0.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-15113
o CVE-2020-15114
o CVE-2020-15106
o CVE-2020-15112
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