Exploit the possiblities

Red Hat Security Advisory 2017-3263-01

Red Hat Security Advisory 2017-3263-01
Posted Nov 27, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-3263-01 - 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: A buffer overrun flaw was found in the IMAP handler of libcurl. By tricking an unsuspecting user into connecting to a malicious IMAP server, an attacker could exploit this flaw to potentially cause information disclosure or crash the application.

tags | advisory, web, overflow, imap, protocol, info disclosure
systems | linux, redhat
advisories | CVE-2017-1000257
MD5 | 86651d87af714f9843e058e1d4dfe44c

Red Hat Security Advisory 2017-3263-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: curl security update
Advisory ID: RHSA-2017:3263-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:3263
Issue date: 2017-11-27
CVE Names: CVE-2017-1000257
=====================================================================

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) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le

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):

* A buffer overrun flaw was found in the IMAP handler of libcurl. By
tricking an unsuspecting user into connecting to a malicious IMAP server,
an attacker could exploit this flaw to potentially cause information
disclosure or crash the application. (CVE-2017-1000257)

Red Hat would like to thank the Curl project for reporting this issue.
Upstream acknowledges Brian Carpenter and the OSS-Fuzz project as the
original reporters.

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/):

1503705 - CVE-2017-1000257 curl: IMAP FETCH response out of bounds read

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
curl-7.29.0-42.el7_4.1.src.rpm

x86_64:
curl-7.29.0-42.el7_4.1.x86_64.rpm
curl-debuginfo-7.29.0-42.el7_4.1.i686.rpm
curl-debuginfo-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-7.29.0-42.el7_4.1.i686.rpm
libcurl-7.29.0-42.el7_4.1.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
curl-debuginfo-7.29.0-42.el7_4.1.i686.rpm
curl-debuginfo-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-devel-7.29.0-42.el7_4.1.i686.rpm
libcurl-devel-7.29.0-42.el7_4.1.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
curl-7.29.0-42.el7_4.1.src.rpm

x86_64:
curl-7.29.0-42.el7_4.1.x86_64.rpm
curl-debuginfo-7.29.0-42.el7_4.1.i686.rpm
curl-debuginfo-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-7.29.0-42.el7_4.1.i686.rpm
libcurl-7.29.0-42.el7_4.1.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
curl-debuginfo-7.29.0-42.el7_4.1.i686.rpm
curl-debuginfo-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-devel-7.29.0-42.el7_4.1.i686.rpm
libcurl-devel-7.29.0-42.el7_4.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
curl-7.29.0-42.el7_4.1.src.rpm

ppc64:
curl-7.29.0-42.el7_4.1.ppc64.rpm
curl-debuginfo-7.29.0-42.el7_4.1.ppc.rpm
curl-debuginfo-7.29.0-42.el7_4.1.ppc64.rpm
libcurl-7.29.0-42.el7_4.1.ppc.rpm
libcurl-7.29.0-42.el7_4.1.ppc64.rpm
libcurl-devel-7.29.0-42.el7_4.1.ppc.rpm
libcurl-devel-7.29.0-42.el7_4.1.ppc64.rpm

ppc64le:
curl-7.29.0-42.el7_4.1.ppc64le.rpm
curl-debuginfo-7.29.0-42.el7_4.1.ppc64le.rpm
libcurl-7.29.0-42.el7_4.1.ppc64le.rpm
libcurl-devel-7.29.0-42.el7_4.1.ppc64le.rpm

s390x:
curl-7.29.0-42.el7_4.1.s390x.rpm
curl-debuginfo-7.29.0-42.el7_4.1.s390.rpm
curl-debuginfo-7.29.0-42.el7_4.1.s390x.rpm
libcurl-7.29.0-42.el7_4.1.s390.rpm
libcurl-7.29.0-42.el7_4.1.s390x.rpm
libcurl-devel-7.29.0-42.el7_4.1.s390.rpm
libcurl-devel-7.29.0-42.el7_4.1.s390x.rpm

x86_64:
curl-7.29.0-42.el7_4.1.x86_64.rpm
curl-debuginfo-7.29.0-42.el7_4.1.i686.rpm
curl-debuginfo-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-7.29.0-42.el7_4.1.i686.rpm
libcurl-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-devel-7.29.0-42.el7_4.1.i686.rpm
libcurl-devel-7.29.0-42.el7_4.1.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
curl-7.29.0-42.el7_4.1.src.rpm

aarch64:
curl-7.29.0-42.el7_4.1.aarch64.rpm
curl-debuginfo-7.29.0-42.el7_4.1.aarch64.rpm
libcurl-7.29.0-42.el7_4.1.aarch64.rpm
libcurl-devel-7.29.0-42.el7_4.1.aarch64.rpm

ppc64le:
curl-7.29.0-42.el7_4.1.ppc64le.rpm
curl-debuginfo-7.29.0-42.el7_4.1.ppc64le.rpm
libcurl-7.29.0-42.el7_4.1.ppc64le.rpm
libcurl-devel-7.29.0-42.el7_4.1.ppc64le.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
curl-7.29.0-42.el7_4.1.src.rpm

x86_64:
curl-7.29.0-42.el7_4.1.x86_64.rpm
curl-debuginfo-7.29.0-42.el7_4.1.i686.rpm
curl-debuginfo-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-7.29.0-42.el7_4.1.i686.rpm
libcurl-7.29.0-42.el7_4.1.x86_64.rpm
libcurl-devel-7.29.0-42.el7_4.1.i686.rpm
libcurl-devel-7.29.0-42.el7_4.1.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-2017-1000257
https://access.redhat.com/security/updates/classification/#moderate
https://curl.haxx.se/docs/adv_20171023.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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RHSA-announce@redhat.com
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