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AUSCERT External Security Bulletin Redistribution
ESB-2017.1900.2
Moderate: curl security, bug fix, and enhancement update
2 August 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: curl
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-7167
Reference: ESB-2016.2961
ESB-2016.2642
Original Bulletin:
https://access.redhat.com/errata/RHSA-2017:2016
Revision History: August 2 2017: Changed Access vector
August 2 2017: Initial Release
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Red Hat Security Advisory
Synopsis: Moderate: curl security, bug fix, and enhancement update
Advisory ID: RHSA-2017:2016-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2016
Issue date: 2017-08-01
CVE Names: CVE-2016-7167
=====================================================================
1. Summary:
An update for curl is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
3. Description:
The curl packages provide the libcurl library and the curl utility for
downloading files from servers using various protocols, including HTTP,
FTP, and LDAP.
Security Fix(es):
* Multiple integer overflow flaws leading to heap-based buffer overflows
were found in the way curl handled escaping and unescaping of data. An
attacker could potentially use these flaws to crash an application using
libcurl by sending a specially crafted input to the affected libcurl
functions. (CVE-2016-7167)
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.4 Release Notes linked from the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1341503 - Curl request for HTTP GET with Cookie to an IPV6 address does not send the cookie
1374740 - libcurl does not accept use of ciphers *-SHA384
1375906 - CVE-2016-7167 curl: escape and unescape integer overflows
1388162 - HTTPS request hangs when HTTP proxy responds too soon
1404815 - SEC_ERROR_NO_TOKEN error when using SSL and multiple threads
1420327 - CURL 7.29 cannot connect to FTPS using proxytunnel
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
curl-7.29.0-42.el7.src.rpm
x86_64:
curl-7.29.0-42.el7.x86_64.rpm
curl-debuginfo-7.29.0-42.el7.i686.rpm
curl-debuginfo-7.29.0-42.el7.x86_64.rpm
libcurl-7.29.0-42.el7.i686.rpm
libcurl-7.29.0-42.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
curl-debuginfo-7.29.0-42.el7.i686.rpm
curl-debuginfo-7.29.0-42.el7.x86_64.rpm
libcurl-devel-7.29.0-42.el7.i686.rpm
libcurl-devel-7.29.0-42.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
curl-7.29.0-42.el7.src.rpm
x86_64:
curl-7.29.0-42.el7.x86_64.rpm
curl-debuginfo-7.29.0-42.el7.i686.rpm
curl-debuginfo-7.29.0-42.el7.x86_64.rpm
libcurl-7.29.0-42.el7.i686.rpm
libcurl-7.29.0-42.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
curl-debuginfo-7.29.0-42.el7.i686.rpm
curl-debuginfo-7.29.0-42.el7.x86_64.rpm
libcurl-devel-7.29.0-42.el7.i686.rpm
libcurl-devel-7.29.0-42.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
curl-7.29.0-42.el7.src.rpm
aarch64:
curl-7.29.0-42.el7.aarch64.rpm
curl-debuginfo-7.29.0-42.el7.aarch64.rpm
libcurl-7.29.0-42.el7.aarch64.rpm
libcurl-devel-7.29.0-42.el7.aarch64.rpm
ppc64:
curl-7.29.0-42.el7.ppc64.rpm
curl-debuginfo-7.29.0-42.el7.ppc.rpm
curl-debuginfo-7.29.0-42.el7.ppc64.rpm
libcurl-7.29.0-42.el7.ppc.rpm
libcurl-7.29.0-42.el7.ppc64.rpm
libcurl-devel-7.29.0-42.el7.ppc.rpm
libcurl-devel-7.29.0-42.el7.ppc64.rpm
ppc64le:
curl-7.29.0-42.el7.ppc64le.rpm
curl-debuginfo-7.29.0-42.el7.ppc64le.rpm
libcurl-7.29.0-42.el7.ppc64le.rpm
libcurl-devel-7.29.0-42.el7.ppc64le.rpm
s390x:
curl-7.29.0-42.el7.s390x.rpm
curl-debuginfo-7.29.0-42.el7.s390.rpm
curl-debuginfo-7.29.0-42.el7.s390x.rpm
libcurl-7.29.0-42.el7.s390.rpm
libcurl-7.29.0-42.el7.s390x.rpm
libcurl-devel-7.29.0-42.el7.s390.rpm
libcurl-devel-7.29.0-42.el7.s390x.rpm
x86_64:
curl-7.29.0-42.el7.x86_64.rpm
curl-debuginfo-7.29.0-42.el7.i686.rpm
curl-debuginfo-7.29.0-42.el7.x86_64.rpm
libcurl-7.29.0-42.el7.i686.rpm
libcurl-7.29.0-42.el7.x86_64.rpm
libcurl-devel-7.29.0-42.el7.i686.rpm
libcurl-devel-7.29.0-42.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
curl-7.29.0-42.el7.src.rpm
x86_64:
curl-7.29.0-42.el7.x86_64.rpm
curl-debuginfo-7.29.0-42.el7.i686.rpm
curl-debuginfo-7.29.0-42.el7.x86_64.rpm
libcurl-7.29.0-42.el7.i686.rpm
libcurl-7.29.0-42.el7.x86_64.rpm
libcurl-devel-7.29.0-42.el7.i686.rpm
libcurl-devel-7.29.0-42.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2016-7167
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.4_Release_Notes/index.html
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
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