ID

VAR-201602-0391

CVE

CVE-2016-0747

TITLE

nginx Service disruption in other resolvers (DoS) Vulnerabilities

DESCRIPTION

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution. nginx is prone to multiple denial-of-service vulnerabilities. Attackers can exploit these issues to cause denial-of-service conditions. There is a security vulnerability in the resolver of nginx versions prior to 1.8.1 and versions 1.9.x prior to 1.9.10. The vulnerability stems from the fact that the program does not limit CNAME resolution. These only affect nginx if the "resolver" directive is used in a configuration file. For the oldstable distribution (wheezy), these problems have been fixed in version 1.2.1-2.2+wheezy4. For the stable distribution (jessie), these problems have been fixed in version 1.6.2-5+deb8u1. For the testing distribution (stretch), these problems have been fixed in version 1.9.10-1. For the unstable distribution (sid), these problems have been fixed in version 1.9.10-1. We recommend that you upgrade your nginx packages. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: rh-nginx18-nginx security update Advisory ID: RHSA-2016:1425-01 Product: Red Hat Software Collections Advisory URL: https://access.redhat.com/errata/RHSA-2016:1425 Issue date: 2016-07-14 CVE Names: CVE-2016-0742 CVE-2016-0746 CVE-2016-0747 CVE-2016-4450 ===================================================================== 1. Summary: An update for rh-nginx18-nginx is now available for Red Hat Software Collections. 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 Software Collections for Red Hat Enterprise Linux Server (v. 6) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: Nginx is a web and proxy server with a focus on high concurrency, performance, and low memory usage. The following packages have been upgraded to a newer upstream version: rh-nginx18-nginx (1.8.1). Security Fix(es): * A NULL pointer dereference flaw was found in the nginx code responsible for saving client request body to a temporary file. A remote attacker could send a specially crafted request that would cause nginx worker process to crash. (CVE-2016-4450) * It was discovered that nginx could perform an out of bound read and dereference an invalid pointer when resolving CNAME DNS records. An attacker able to manipulate DNS responses received by nginx could use this flaw to cause a worker process to crash if nginx enabled the resolver in its configuration. (CVE-2016-0742) * A use-after-free flaw was found in the way nginx resolved certain CNAME DNS records. (CVE-2016-0746) * It was discovered that nginx did not limit recursion when resolving CNAME DNS records. (CVE-2016-0747) 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 The rh-nginx18-nginx service must be restarted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1302587 - CVE-2016-0742 nginx: invalid pointer dereference in resolver 1302588 - CVE-2016-0746 nginx: use-after-free during CNAME response processing in resolver 1302589 - CVE-2016-0747 nginx: Insufficient limits of CNAME resolution in resolver 1341462 - CVE-2016-4450 nginx: NULL pointer dereference while writing client request body 6. Package List: Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6): Source: rh-nginx18-nginx-1.8.1-1.el6.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6): Source: rh-nginx18-nginx-1.8.1-1.el6.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7): Source: rh-nginx18-nginx-1.8.1-1.el6.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6): Source: rh-nginx18-nginx-1.8.1-1.el6.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7): Source: rh-nginx18-nginx-1.8.1-1.el7.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1): Source: rh-nginx18-nginx-1.8.1-1.el7.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2): Source: rh-nginx18-nginx-1.8.1-1.el7.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7): Source: rh-nginx18-nginx-1.8.1-1.el7.src.rpm x86_64: rh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm rh-nginx18-nginx-debuginfo-1.8.1-1.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-2016-0742 https://access.redhat.com/security/cve/CVE-2016-0746 https://access.redhat.com/security/cve/CVE-2016-0747 https://access.redhat.com/security/cve/CVE-2016-4450 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFXhy2gXlSAg2UNWIIRAjOgAJ9QjuFMrvK50IeJq8Ky7VkefuMBUwCeM+Cp ZhbDRXs2sdXbnakZ6oJi/K8= =7RBd -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201606-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: nginx: Multiple vulnerabilities Date: June 17, 2016 Bugs: #560854, #573046, #584744 ID: 201606-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in nginx, the worst of which may allow a remote attacker to cause a Denial of Service. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-servers/nginx < 1.10.1 >= 1.10.1 Description =========== Multiple vulnerabilities have been discovered in nginx. Please review the CVE identifiers referenced below for details. Workaround ========== There is no known workaround at this time. Resolution ========== All nginx users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-servers/nginx-1.10.1" References ========== [ 1 ] CVE-2013-3587 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3587 [ 2 ] CVE-2016-0742 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0742 [ 3 ] CVE-2016-0746 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0746 [ 4 ] CVE-2016-0747 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0747 [ 5 ] CVE-2016-4450 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4450 [ 6 ] CVE-2016-4450 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4450 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201606-06 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2016 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5 . ============================================================================ Ubuntu Security Notice USN-2892-1 February 09, 2016 nginx vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 15.10 - Ubuntu 14.04 LTS Summary: Several security issues were fixed in nginx. (CVE-2016-0747) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 15.10: nginx-core 1.9.3-1ubuntu1.1 nginx-extras 1.9.3-1ubuntu1.1 nginx-full 1.9.3-1ubuntu1.1 nginx-light 1.9.3-1ubuntu1.1 Ubuntu 14.04 LTS: nginx-core 1.4.6-1ubuntu3.4 nginx-extras 1.4.6-1ubuntu3.4 nginx-full 1.4.6-1ubuntu3.4 nginx-light 1.4.6-1ubuntu3.4 nginx-naxsi 1.4.6-1ubuntu3.4 In general, a standard system update will make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-09-20-4 Xcode 13 Xcode 13 addresses the following issues. IDE Xcode Server Available for: macOS Big Sur 11.3 and later Impact: Multiple issues in nginx Description: Multiple issues were addressed by updating nginx to version 1.21.0. CVE-2016-0742 CVE-2016-0746 CVE-2016-0747 CVE-2017-7529 CVE-2018-16843 CVE-2018-16844 CVE-2018-16845 CVE-2019-20372 Installation note: Xcode 13 may be obtained from: https://developer.apple.com/xcode/downloads/ To check that the Xcode has been updated: * Select Xcode in the menu bar * Select About Xcode * The version after applying this update will be "Xcode 13"

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

resource management error

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

The vendor reported this issue.

SOURCES

LAST UPDATE DATE

2024-08-14T13:15:20.392000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE