UBUNTU-CVE-2016-2183

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    UBUNTU-CVE-2016-2183

    Published: 31 Aug 2016Last Modified: 1 Jun 2026
    Upstream:
    CVE-2016-2183
    Aliases:
    USN-3087-1
    USN-3179-1
    USN-3194-1

    Summary:

    Details: The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other protocols and products, have a birthday bound of approximately four billion blocks, which makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTPS session using Triple DES in CBC mode, aka a "Sweet32" attack.

    References: https://ubuntu.com/security/CVE-2016-2183, https://sweet32.info/, https://access.redhat.com/articles/2548661, https://access.redhat.com/security/cve/cve-2016-2183, https://blog.cryptographyengineering.com/2016/08/24/attack-of-week-64-bit-ciphers-in-tls/, https://community.qualys.com/thread/16555, https://github.com/ssllabs/ssllabs-scan/issues/387#issuecomment-242514633, https://nakedsecurity.sophos.com/2016/08/25/anatomy-of-a-cryptographic-collision-the-sweet32-attack/, https://quickview.cloudapps.cisco.com/quickview/bug/CSCvb05575, https://security-tracker.debian.org/tracker/CVE-2016-2183, https://twitter.com/symantec/status/768786631159603200, https://www.ietf.org/mail-archive/web/tls/current/msg04560.html, https://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2016/august/new-practical-attacks-on-64-bit-block-ciphers-3des-blowfish/, https://www.openssl.org/blog/blog/2016/08/24/sweet32/, https://www.sigsac.org/ccs/CCS2016/accepted-papers/, https://www.suse.com/security/cve/CVE-2016-2183.html, https://www.teskalabs.com/blog/teskalabs-bulletin-160826-seacat-sweet32-issue, https://ubuntu.com/security/notices/USN-3087-1, http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/5d2bb853ae31, https://ubuntu.com/security/notices/USN-3179-1, https://ubuntu.com/security/notices/USN-3194-1, https://ubuntu.com/security/notices/USN-3198-1, https://ubuntu.com/security/notices/USN-3270-1, https://ubuntu.com/security/notices/USN-3372-1, https://www.cve.org/CVERecord?id=CVE-2016-2183

    Affected packages

    Package

    Name: nss

    Purl: pkg:deb/ubuntu/nss?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:3.28.4-0ubuntu0.14.04.1

    Affected versions

    2:3.15.1-1ubuntu1
    2:3.15.2-1
    2:3.15.3-1
    2:3.15.3.1-1
    2:3.15.3.1-1.1
    2:3.15.3.1-1.1ubuntu1
    2:3.15.4-1ubuntu3
    2:3.15.4-1ubuntu4
    2:3.15.4-1ubuntu5
    2:3.15.4-1ubuntu6
    2:3.15.4-1ubuntu7
    2:3.15.4-1ubuntu7.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
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