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CVE-2017-3731

Status Candidate

Overview

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.

Related Files

Red Hat Security Advisory 2018-2186-01
Posted Jul 12, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2186-01 - This release adds the new Apache HTTP Server 2.4.29 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.23, and includes bug fixes and enhancements. Issues addressed include a remote SQL injection vulnerability.

tags | advisory, remote, web, sql injection
systems | linux, redhat
advisories | CVE-2016-2182, CVE-2016-6302, CVE-2016-6306, CVE-2016-7055, CVE-2017-3731, CVE-2017-3732, CVE-2017-3736, CVE-2017-3737, CVE-2017-3738
SHA-256 | 3ae001c838be7fe63f3f17218120c104c0337869b4012d6ba095f9df05b116a8
Red Hat Security Advisory 2018-2185-01
Posted Jul 12, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2185-01 - This release adds the new Apache HTTP Server 2.4.29 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.23, and includes bug fixes and enhancements. Issues addressed include a remote SQL injection vulnerability.

tags | advisory, remote, web, sql injection
systems | linux, redhat
advisories | CVE-2016-2182, CVE-2016-6302, CVE-2016-6306, CVE-2016-7055, CVE-2017-3731, CVE-2017-3732, CVE-2017-3736, CVE-2017-3737, CVE-2017-3738
SHA-256 | 7e87933107e4717883ce5385c59d3741b7ecc791f11d4f3340888ec72b50870b
Red Hat Security Advisory 2018-2187-01
Posted Jul 12, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2187-01 - This release adds the new Apache HTTP Server 2.4.29 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.23, and includes bug fixes and enhancements. Issues addressed include out-of-bounds access.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2016-2182, CVE-2016-6302, CVE-2016-6306, CVE-2016-7055, CVE-2017-3731, CVE-2017-3732, CVE-2017-3736, CVE-2017-3737, CVE-2017-3738
SHA-256 | 3cf3a4008f8603285e63957d08f151b7215154836af4d8dfe0c8ddd59cc6c556
Micro Focus Security Bulletin MFSBGN03804 1
Posted May 10, 2018
Authored by Micro Focus | Site microfocus.com

Micro Focus Security Bulletin MFSBGN03804 1 - Potential security vulnerabilities have been identified with Service Manager. These vulnerabilities have been identified in the OpenSSL open source library component and may be exploited to cause disruption of service and unauthorized disclosure of information. Revision 1 of this advisory.

tags | advisory, vulnerability
advisories | CVE-2017-3731, CVE-2017-3732
SHA-256 | d6f240a9cad2e06c8e0909e3cf693c19d337f32f14bd272746164c071da97dc2
FreeBSD Security Advisory - FreeBSD-SA-17:02.openssl
Posted Feb 23, 2017
Site security.freebsd.org

FreeBSD Security Advisory - If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. There is a carry propagating bug in the x86_64 Montgomery squaring procedure. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. Various other issues have also been identified.

tags | advisory
systems | freebsd, bsd
advisories | CVE-2016-7055, CVE-2017-3731, CVE-2017-3732
SHA-256 | fd0871f8f44d01650f47267d841a243c6a575b751f8b35d5ec24cc8563298df8
Red Hat Security Advisory 2017-0286-01
Posted Feb 20, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0286-01 - OpenSSL is a toolkit that implements the Secure Sockets Layer and Transport Layer Security protocols, as well as a full-strength general-purpose cryptography library. Security Fix: An integer underflow leading to an out of bounds read flaw was found in OpenSSL. A remote attacker could possibly use this flaw to crash a 32-bit TLS/SSL server or client using OpenSSL if it used the RC4-MD5 cipher suite.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2016-8610, CVE-2017-3731
SHA-256 | 263e10e25244071ae6bff5440a09981e5d4c03c3e8382ee37d122e6f44fcaee2
Gentoo Linux Security Advisory 201702-07
Posted Feb 14, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201702-7 - Multiple vulnerabilities have been found in OpenSSL, the worst of which might allow attackers to access sensitive information. Versions less than 1.0.2k are affected.

tags | advisory, vulnerability
systems | linux, gentoo
advisories | CVE-2016-7055, CVE-2017-3730, CVE-2017-3731, CVE-2017-3732
SHA-256 | 2868de12def1f5a6465fb81ae04a5637b8d741fa182174ea0276c56a6a11b31d
Slackware Security Advisory - openssl Updates
Posted Feb 13, 2017
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New openssl packages are available for Slackware 14.2 and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2016-7055, CVE-2017-3731, CVE-2017-3732
SHA-256 | 4b83eb4778dd1ad58130c6ca504a220795ceb3f5f3ead2b30a42ef3dbbb5de0b
Ubuntu Security Notice USN-3181-1
Posted Feb 1, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3181-1 - Guido Vranken discovered that OpenSSL used undefined behaviour when performing pointer arithmetic. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS as other releases were fixed in a previous security update. It was discovered that OpenSSL did not properly handle Montgomery multiplication, resulting in incorrect results leading to transient failures. This issue only applied to Ubuntu 16.04 LTS, and Ubuntu 16.10. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2016-2177, CVE-2016-7055, CVE-2016-7056, CVE-2016-8610, CVE-2017-3731, CVE-2017-3732
SHA-256 | 57bc2db6d746d9332099eb6b7e11a55d8ecf7dce6e56d672f080cb8e2faff1ab
Debian Security Advisory 3773-1
Posted Jan 30, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3773-1 - Several vulnerabilities were discovered in OpenSSL.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2016-7056, CVE-2016-8610, CVE-2017-3731
SHA-256 | 01bd6a88895c0b06c9b01d6c418869bc5ad658b8207b7d6490fcf993610bde45
OpenSSL Toolkit 1.0.2k
Posted Jan 26, 2017
Site openssl.org

OpenSSL is a robust, fully featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols with full-strength cryptography world-wide.

Changes: Bug fixes for an out-of-bounds read, a carry propagating bug, and multiple other issues.
tags | tool, encryption, protocol
systems | unix
advisories | CVE-2016-7055, CVE-2017-3731, CVE-2017-3732
SHA-256 | 6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0
OpenSSL Security Advisory 20170126
Posted Jan 26, 2017
Site openssl.org

OpenSSL Security Advisory 20170126 - If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. Other issues were also addressed.

tags | advisory
advisories | CVE-2015-3193, CVE-2016-7055, CVE-2017-3730, CVE-2017-3731, CVE-2017-3732
SHA-256 | 457838ec233230687d717bc896db28bd57340df047d0575d696435c9376532d2
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