Bug 1646730 (CVE-2018-18311) - CVE-2018-18311 perl: Integer overflow leading to buffer overflow in Perl_my_setenv()
Summary: CVE-2018-18311 perl: Integer overflow leading to buffer overflow in Perl_my_s...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-18311
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1653527 1653528 1653529 1654918 1654920 1656293 1659170 1660190 1661064 1719431 1719432 1724849
Blocks: 1646752
TreeView+ depends on / blocked
 
Reported: 2018-11-05 22:25 UTC by Laura Pardo
Modified: 2023-09-07 19:30 UTC (History)
39 users (show)

Fixed In Version: perl 5.29.1, perl 5.26.3
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2019-01-21 18:54:11 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:0001 0 None None None 2019-01-02 13:29:34 UTC
Red Hat Product Errata RHSA-2019:0010 0 None None None 2019-01-02 16:13:22 UTC
Red Hat Product Errata RHSA-2019:0109 0 None None None 2019-01-21 17:34:10 UTC
Red Hat Product Errata RHSA-2019:1790 0 None None None 2019-07-16 13:45:22 UTC
Red Hat Product Errata RHSA-2019:1942 0 None None None 2019-07-30 09:08:08 UTC
Red Hat Product Errata RHSA-2019:2400 0 None None None 2019-08-07 11:35:41 UTC

Description Laura Pardo 2018-11-05 22:25:40 UTC 
A flaw was found in Perl versions 5.8.0 through 5.28. An Integer overflow leading to buffer overflow in Perl_my_setenv function in util.c


Upstream Patch:
https://github.com/Perl/perl5/commit/34716e2a6ee2af96078d62b065b7785c001194be
Comment 1 Doran Moppert 2018-11-23 03:57:37 UTC 
Upstream ticket:

https://rt.perl.org/Public/Bug/Display.html?id=133204
Comment 4 Doran Moppert 2018-11-27 03:47:50 UTC 
Acknowledgments:

Name: the Perl project
Upstream: Jayakrishna Menon
Comment 5 Doran Moppert 2018-11-30 03:18:21 UTC 
Created perl tracking bugs for this issue:

Affects: fedora-all [bug 1654918]
Comment 8 Doran Moppert 2018-11-30 04:02:50 UTC 
Statement:

This vulnerability is present in versions of perl included with Red Hat Virtualization Hypervisor and Management Appliance, however it is not exposed in any meaningful way. Perl is only included in these images as a dependency of components which do not manipulate ENV, and are not exposed to user input. A future update may address this issue.
Comment 10 errata-xmlrpc 2019-01-02 13:29:31 UTC 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS

Via RHSA-2019:0001 https://access.redhat.com/errata/RHSA-2019:0001
Comment 11 errata-xmlrpc 2019-01-02 16:13:20 UTC 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6

Via RHSA-2019:0010 https://access.redhat.com/errata/RHSA-2019:0010
Comment 12 errata-xmlrpc 2019-01-21 17:34:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0109 https://access.redhat.com/errata/RHSA-2019:0109
Comment 13 Paul Harvey 2019-01-25 13:03:21 UTC 
openshift-enterprise-3: notaffected. I reviewed OpenShift containers for applications with dependencies on perl and was unable to identify any where the perl interpreter would be exposed to attacker-controlled environment variables which could expose this flaw. I have not filed trackers as these images will inherit the existing perl fixes next time they are respun. See also https://access.redhat.com/articles/2803031
Comment 16 errata-xmlrpc 2019-07-16 13:45:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.5 Extended Update Support

Via RHSA-2019:1790 https://access.redhat.com/errata/RHSA-2019:1790
Comment 17 errata-xmlrpc 2019-07-30 09:08:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.4 Extended Update Support

Via RHSA-2019:1942 https://access.redhat.com/errata/RHSA-2019:1942
Comment 18 errata-xmlrpc 2019-08-07 11:35:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.3 Advanced Update Support
  Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.3 Telco Extended Update Support

Via RHSA-2019:2400 https://access.redhat.com/errata/RHSA-2019:2400
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