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Red Hat Enterprise Linux 7 RHSA-2016:2575-02 Moderate: Curl Bug Fix

red hat
Calendar Grey November 3, 2016
Scroller Redhat
Debian GNU/Linux 10 patches wget with significant severity corrections for vulnerabilities, improving system security.
An update for curl is now available for Red Hat Enterprise Linux 7

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

Summary

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):
* It was found that the libcurl library did not prevent TLS session resumption when the client certificate had changed. An attacker could potentially use this flaw to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate. (CVE-2016-5419)
* It was found that the libcurl library did not check the client certificate when choosing the TLS connection to reuse. An attacker could potentially use this flaw to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate. (CVE-2016-5420)
* It was found that the libcurl library using the NSS (Network Security Services) library as TLS/SSL backend incorrectly re-used client certificates for subsequent TLS connections in certain cases. An attacker could potentially use this flaw to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate. (CVE-2016-7141)
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory bug fix moderate impact red hat enterprise linux authentication risk curl security TLS session

References

https://access.redhat.com/security/cve/CVE-2016-5419 https://access.redhat.com/security/cve/CVE-2016-5420 https://access.redhat.com/security/cve/CVE-2016-7141 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/7.3_Release_Notes/index.html

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: curl-7.29.0-35.el7.src.rpm
x86_64: curl-7.29.0-35.el7.x86_64.rpm curl-debuginfo-7.29.0-35.el7.i686.rpm curl-debuginfo-7.29.0-35.el7.x86_64.rpm libcurl-7.29.0-35.el7.i686.rpm libcurl-7.29.0-35.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: curl-debuginfo-7.29.0-35.el7.i686.rpm curl-debuginfo-7.29.0-35.el7.x86_64.rpm libcurl-devel-7.29.0-35.el7.i686.rpm libcurl-devel-7.29.0-35.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: curl-7.29.0-35.el7.src.rpm
x86_64: curl-7.29.0-35.el7.x86_64.rpm curl-debuginfo-7.29.0-35.el7.i686.rpm curl-debuginfo-7.29.0-35.el7.x86_64.rpm libcurl-7.29.0-35.el7.i686.rpm libcurl-7.29.0-35.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: curl-debuginfo-7.29.0-35.el7.i686.rpm curl-debuginfo-7.29.0-35.el7.x86_64.rpm libcurl-devel-7.29.0-35.el7.i686.rpm libcurl-devel-7.29.0-35.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: curl-7.29.0-35.el7.src.rpm
aarch64: curl-7.29.0-35.el7.aarch64.rpm curl-debuginfo-7.29.0-35.el7.aarch64.rpm libcurl-7.29.0-35.el7.aarch64.rpm libcurl-devel-7.29.0-35.el7.aarch64.rpm
ppc64: curl-7.29.0-35.el7.ppc64.rpm curl-debuginfo-7.29.0-35.el7.ppc.rpm curl-debuginfo-7.29.0-35.el7.ppc64.rpm

Read the Full Advisory


Advisory ID: RHSA-2016:2575-02
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:2575.html
Issue date: 2016-11-03

Topic

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory bug fix moderate impact red hat enterprise linux authentication risk curl security TLS session

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

Bugs Fixed

1260178 - curl and libcurl truncates username/password in URL to 255 characters1269855 - Certificate verification fails with multiple https urls [el7/curl]

1275769 - curl requires public ssh key file [RHEL-7]

1305974 - --disable-epsv option ignored for IPv6 hosts

1347904 - Ceph RGW deadlocks in curl_multi_wait

1362183 - CVE-2016-5419 curl: TLS session resumption client cert bypass

1362190 - CVE-2016-5420 curl: Re-using connection with wrong client cert

1373229 - CVE-2016-7141 curl: Incorrect reuse of client certificates

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