var-201606-0476
Vulnerability from variot

os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a crafted request, involving writing a client request body to a temporary file. Supplementary information : CWE Vulnerability type by CWE-476: NULL Pointer Dereference (NULL Pointer dereference ) Has been identified. nginx is prone to a denial-of-service vulnerability. Attackers can exploit this issue to crash the affected application, resulting in denial-of-service conditions. nginx 1.3.9 through 1.11.0 are vulnerable. A security vulnerability exists in the os/unix/ngx_files.c file of nginx versions prior to 1.10.1 and versions 1.11.x prior to 1.11.1. ========================================================================== Ubuntu Security Notice USN-2991-1 June 02, 2016

nginx vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 16.04 LTS
  • Ubuntu 15.10
  • Ubuntu 14.04 LTS

Summary:

nginx could be made to crash if it received specially crafted network traffic.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04 LTS: nginx-core 1.10.0-0ubuntu0.16.04.2 nginx-extras 1.10.0-0ubuntu0.16.04.2 nginx-full 1.10.0-0ubuntu0.16.04.2 nginx-light 1.10.0-0ubuntu0.16.04.2

Ubuntu 15.10: nginx-core 1.9.3-1ubuntu1.2 nginx-extras 1.9.3-1ubuntu1.2 nginx-full 1.9.3-1ubuntu1.2 nginx-light 1.9.3-1ubuntu1.2

Ubuntu 14.04 LTS: nginx-core 1.4.6-1ubuntu3.5 nginx-extras 1.4.6-1ubuntu3.5 nginx-full 1.4.6-1ubuntu3.5 nginx-light 1.4.6-1ubuntu3.5

In general, a standard system update will make all the necessary changes. -----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.

  1. 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

  1. 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). (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. An attacker able to manipulate DNS responses received by nginx could use this flaw to cause a worker process to crash or, possibly, execute arbitrary code if nginx enabled the resolver in its configuration. (CVE-2016-0746)

  • It was discovered that nginx did not limit recursion 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 use an excessive amount of resources if nginx enabled the resolver in its configuration. (CVE-2016-0747)

  • 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.

  1. 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/

  1. 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

  1. 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

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-- 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 .

For the stable distribution (jessie), this problem has been fixed in version 1.6.2-5+deb8u2.

For the unstable distribution (sid), this problem has been fixed in version 1.10.1-1.

We recommend that you upgrade your nginx packages

Show details on source website

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    "data": "os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a crafted request, involving writing a client request body to a temporary file. Supplementary information : CWE Vulnerability type by CWE-476: NULL Pointer Dereference (NULL Pointer dereference ) Has been identified. nginx is prone to a denial-of-service vulnerability. \nAttackers can exploit this issue to crash the affected application, resulting in denial-of-service conditions. \nnginx 1.3.9 through 1.11.0 are vulnerable. A security vulnerability exists in the os/unix/ngx_files.c file of nginx versions prior to 1.10.1 and versions 1.11.x prior to 1.11.1. ==========================================================================\nUbuntu Security Notice USN-2991-1\nJune 02, 2016\n\nnginx vulnerability\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 16.04 LTS\n- Ubuntu 15.10\n- Ubuntu 14.04 LTS\n\nSummary:\n\nnginx could be made to crash if it received specially crafted network\ntraffic. \n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 16.04 LTS:\n  nginx-core                      1.10.0-0ubuntu0.16.04.2\n  nginx-extras                    1.10.0-0ubuntu0.16.04.2\n  nginx-full                      1.10.0-0ubuntu0.16.04.2\n  nginx-light                     1.10.0-0ubuntu0.16.04.2\n\nUbuntu 15.10:\n  nginx-core                      1.9.3-1ubuntu1.2\n  nginx-extras                    1.9.3-1ubuntu1.2\n  nginx-full                      1.9.3-1ubuntu1.2\n  nginx-light                     1.9.3-1ubuntu1.2\n\nUbuntu 14.04 LTS:\n  nginx-core                      1.4.6-1ubuntu3.5\n  nginx-extras                    1.4.6-1ubuntu3.5\n  nginx-full                      1.4.6-1ubuntu3.5\n  nginx-light                     1.4.6-1ubuntu3.5\n\nIn general, a standard system update will make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n                   Red Hat Security Advisory\n\nSynopsis:          Moderate: rh-nginx18-nginx security update\nAdvisory ID:       RHSA-2016:1425-01\nProduct:           Red Hat Software Collections\nAdvisory URL:      https://access.redhat.com/errata/RHSA-2016:1425\nIssue date:        2016-07-14\nCVE Names:         CVE-2016-0742 CVE-2016-0746 CVE-2016-0747 \n                   CVE-2016-4450 \n=====================================================================\n\n1. Summary:\n\nAn update for rh-nginx18-nginx is now available for Red Hat Software\nCollections. \n\nRed Hat Product Security has rated this update as having a security impact\nof Moderate. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) - x86_64\nRed Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - x86_64\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) - x86_64\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) - x86_64\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) - x86_64\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) - x86_64\nRed Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) - x86_64\nRed Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64\n\n3. Description:\n\nNginx is a web and proxy server with a focus on high concurrency,\nperformance, and low memory usage. \n\nThe following packages have been upgraded to a newer upstream version:\nrh-nginx18-nginx (1.8.1). (CVE-2016-4450)\n\n* It was discovered that nginx could perform an out of bound read and\ndereference an invalid pointer when resolving CNAME DNS records. An\nattacker able to manipulate DNS responses received by nginx could use this\nflaw to cause a worker process to crash if nginx enabled the resolver in\nits configuration. (CVE-2016-0742)\n\n* A use-after-free flaw was found in the way nginx resolved certain CNAME\nDNS records. An attacker able to manipulate DNS responses received by nginx\ncould use this flaw to cause a worker process to crash or, possibly,\nexecute arbitrary code if nginx enabled the resolver in its configuration. \n(CVE-2016-0746)\n\n* It was discovered that nginx did not limit recursion when resolving CNAME\nDNS records. An attacker able to manipulate DNS responses received by nginx\ncould use this flaw to cause a worker process to use an excessive amount of\nresources if nginx enabled the resolver in its configuration. \n(CVE-2016-0747)\n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe rh-nginx18-nginx service must be restarted for this update to take\neffect. \n\n5. Package List:\n\nRed Hat Software Collections for Red Hat Enterprise Linux Server (v. 6):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el6.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm\n\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el6.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm\n\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el6.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm\n\nRed Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el6.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el6.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el6.x86_64.rpm\n\nRed Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el7.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el7.x86_64.rpm\n\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el7.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el7.x86_64.rpm\n\nRed Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el7.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el7.x86_64.rpm\n\nRed Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nrh-nginx18-nginx-1.8.1-1.el7.src.rpm\n\nx86_64:\nrh-nginx18-nginx-1.8.1-1.el7.x86_64.rpm\nrh-nginx18-nginx-debuginfo-1.8.1-1.el7.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security.  Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2016-0742\nhttps://access.redhat.com/security/cve/CVE-2016-0746\nhttps://access.redhat.com/security/cve/CVE-2016-0747\nhttps://access.redhat.com/security/cve/CVE-2016-4450\nhttps://access.redhat.com/security/updates/classification/#moderate\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2016 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n\niD8DBQFXhy2gXlSAg2UNWIIRAjOgAJ9QjuFMrvK50IeJq8Ky7VkefuMBUwCeM+Cp\nZhbDRXs2sdXbnakZ6oJi/K8=\n=7RBd\n-----END PGP SIGNATURE-----\n\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory                           GLSA 201606-06\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n                                           https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: Normal\n    Title: nginx: Multiple vulnerabilities\n     Date: June 17, 2016\n     Bugs: #560854, #573046, #584744\n       ID: 201606-06\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in nginx, the worst of which\nmay allow a remote attacker to cause a Denial of Service. \n\nAffected packages\n=================\n\n    -------------------------------------------------------------------\n     Package              /     Vulnerable     /            Unaffected\n    -------------------------------------------------------------------\n  1  www-servers/nginx            \u003c 1.10.1                  \u003e= 1.10.1\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in nginx. Please review\nthe CVE identifiers referenced below for details. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll nginx users should upgrade to the latest version:\n\n  # emerge --sync\n  # emerge --ask --oneshot --verbose \"\u003e=www-servers/nginx-1.10.1\"\n\nReferences\n==========\n\n[ 1 ] CVE-2013-3587\n      http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3587\n[ 2 ] CVE-2016-0742\n      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0742\n[ 3 ] CVE-2016-0746\n      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0746\n[ 4 ] CVE-2016-0747\n      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0747\n[ 5 ] CVE-2016-4450\n      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4450\n[ 6 ] CVE-2016-4450\n      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4450\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/201606-06\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2016 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n. \n\nFor the stable distribution (jessie), this problem has been fixed in\nversion 1.6.2-5+deb8u2. \n\nFor the unstable distribution (sid), this problem has been fixed in\nversion 1.10.1-1. \n\nWe recommend that you upgrade your nginx packages",
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