Bug 1645154 (CVE-2018-19132) - CVE-2018-19132 squid: Memory leak in SNMP query rejection code
Summary: CVE-2018-19132 squid: Memory leak in SNMP query rejection code
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-19132
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1645155 1645156 1649230
Blocks: 1645157
TreeView+ depends on / blocked
 
Reported: 2018-11-01 13:53 UTC by Pedro Sampaio
Modified: 2022-03-13 15:56 UTC (History)
5 users (show)

Fixed In Version: Squid 4.4, Squid 3.5
Doc Type: If docs needed, set a value
Doc Text:
A memory leak was discovered in the way Squid handles SNMP denied queries. A remote attacker may use this flaw to exhaust the resources on the server machine.
Clone Of:
Environment:
Last Closed: 2021-10-25 22:20:56 UTC

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Description Pedro Sampaio 2018-11-01 13:53:28 UTC 
Due to a memory leak in SNMP query rejection code, Squid is  vulnerable to a denial of service attack.

Upstream advisory:

http://www.squid-cache.org/Advisories/SQUID-2018_5.txt

Upstream patch:

http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-bc9786119f058a76ddf0625424bc33d36460b9a2.patch
http://www.squid-cache.org/Versions/v4/changesets/squid-4-983c5c36e5f109512ed1af38a329d0b5d0967498.patch
Comment 1 Pedro Sampaio 2018-11-01 13:54:14 UTC 
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1645155]
Comment 3 Riccardo Schirone 2018-11-09 13:55:06 UTC 
External References:

http://www.squid-cache.org/Advisories/SQUID-2018_5.txt
Comment 4 Riccardo Schirone 2018-11-09 13:56:56 UTC 
Upstream patch github links:
- v4: https://github.com/squid-cache/squid/commit/983c5c36e5f109512ed1af38a329d0b5d0967498
- v3.5: https://github.com/squid-cache/squid/commit/bc9786119f058a76ddf0625424bc33d36460b9a2
Comment 7 Riccardo Schirone 2018-11-13 08:23:08 UTC 
Statement:

This issue did not affect the versions of squid as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include the vulnerable code.
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