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AUSCERT External Security Bulletin Redistribution
ESB-2018.2988
Apache HTTP Server vulnerabilities
4 October 2018
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AusCERT Security Bulletin Summary
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Product: apache2
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-11763 CVE-2018-1333 CVE-2018-1302
Reference: ESB-2018.2435
ESB-2018.2392
ESB-2018.0881
ESB-2018.0845
Original Bulletin:
http://www.ubuntu.com/usn/usn-3783-1
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USN-3783-1: Apache HTTP Server vulnerabilities
3 October 2018
apache2 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.04 LTS
Summary
Several security issues were fixed in the Apache HTTP Server.
Software Description
o apache2 - Apache HTTP server
Details
Robert Swiecki discovered that the Apache HTTP Server HTTP/2 module incorrectly
destroyed certain streams. A remote attacker could possibly use this issue to
cause the server to crash, leading to a denial of service. (CVE-2018-1302)
Craig Young discovered that the Apache HTTP Server HTTP/2 module incorrectly
handled certain requests. A remote attacker could possibly use this issue to
cause the server to consume resources, leading to a denial of service.
(CVE-2018-1333)
Gal Goldshtein discovered that the Apache HTTP Server HTTP/2 module incorrectly
handled large SETTINGS frames. A remote attacker could possibly use this issue
to cause the server to consume resources, leading to a denial of service.
(CVE-2018-11763)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04 LTS
apache2-bin - 2.4.29-1ubuntu4.4
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
o CVE-2018-11763
o CVE-2018-1302
o CVE-2018-1333
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