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AUSCERT External Security Bulletin Redistribution
ESB-2018.0348
[SECURITY] [DLA 1266-1] squid3 security update
5 February 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: squid3
Publisher: Debian
Operating System: Debian GNU/Linux 7
Impact/Access: Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1000027 CVE-2018-1000024
Reference: ESB-2018.0227
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2018/02/msg00001.html
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[SECURITY] [DLA 1266-1] squid3 security update
Package : squid3
Version : 3.1.20-2.2+deb7u8
CVE ID : CVE-2018-1000024 CVE-2018-1000027
Debian Bug : 888719 888720
Squid, a high-performance proxy caching server for web clients, has been
found vulnerable to denial of service attacks associated with ESI
response processing and intermediate CA certificate downloading.
CVE-2018-1000024
Incorrect pointer handling resulted in the ability of a remote
server to return a crafted ESI response which could trigger a denial
of service for all clients accessing the Squid service. This issue
affects the Squid custom ESI parser.
CVE-2018-1000027
Incorrect pointer handling resulted in the possibility of a remote
client delivering certain HTTP requests in conjunction with certain
trusted server reponses involving the processing of ESI responses or
downloading of intermediate CA certificates to trigger a denial of
service for all clients accessing the squid service.
For Debian 7 "Wheezy", these problems have been fixed in version
3.1.20-2.2+deb7u8.
We recommend that you upgrade your squid3 packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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