Bug 1552844 – CVE-2018-1000116 net-snmp: Heap corruption in snmp_pdu_parse function in snmplib/snmp_api.c

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Bug 1552844 - (CVE-2018-1000116) CVE-2018-1000116 net-snmp: Heap corruption in snmp_pdu_parse function in snmplib/snmp_api.c

Summary:	CVE-2018-1000116 net-snmp: Heap corruption in snmp_pdu_parse function in snmp...

Status:	CLOSED ERRATA

Aliases:	CVE-2018-1000116

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20180307,repor...
Keywords:	Security

Depends On:	1552845
Blocks:	1552846
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Reported:	2018-03-07 15:41 EST by Pedro Sampaio
Modified:	2018-03-21 10:11 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:	It was discovered that the snmp_pdu_parse() mishandles error codes and is vulnerable to a heap corruption within the parsing of the PDU prior to the authentication process. A remote, unauthenticated attacker could use this flaw to crash snmpd or, potentially, execute arbitrary code on the system with the privileges of the user running snmpd.
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Clone Of:
Environment:
Last Closed:	2018-03-19 19:53:39 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Pedro Sampaio 2018-03-07 15:41:51 EST

The version 5.7.2 was vulnerable to a heap corruption within the parsing of the PDU prior to the authentication process.

Upstream issue:

https://sourceforge.net/p/net-snmp/bugs/2821/

Upstream patch:

https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/

Comment 1 Pedro Sampaio 2018-03-07 15:42:38 EST

Created net-snmp tracking bugs for this issue:

Affects: fedora-all [bug 1552845]

Comment 2 David Walser 2018-03-15 09:49:38 EDT

The "upstream patch" linked in Comment 0 is the same as for Bug 1212408, which was CVE-2015-5621.

Comment 3 Pedro Yóssis Silva Barbosa 2018-03-19 19:53:50 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2015:1636: https://access.redhat.com/errata/RHSA-2015:1636

Comment 4 Pedro Yóssis Silva Barbosa 2018-03-19 19:53:58 EDT

External References:

https://sourceforge.net/p/net-snmp/bugs/2821/

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