ubuntu-cve-2016-2183
Vulnerability from osv_ubuntu
Published
2016-08-31 00:00
Modified
2026-06-01 07:04
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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
N/A (UNKNOWN)
low
References
To clipboard 

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        "1.0.2g-1ubuntu4.1",
        "1.0.2g-1ubuntu4.2"
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  ],
  "aliases": [],
  "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.",
  "id": "UBUNTU-CVE-2016-2183",
  "modified": "2026-06-01T07:04:25Z",
  "published": "2016-08-31T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-2183"
    },
    {
      "type": "REPORT",
      "url": "https://sweet32.info/"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/articles/2548661"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/cve-2016-2183"
    },
    {
      "type": "REPORT",
      "url": "https://blog.cryptographyengineering.com/2016/08/24/attack-of-week-64-bit-ciphers-in-tls/"
    },
    {
      "type": "REPORT",
      "url": "https://community.qualys.com/thread/16555"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ssllabs/ssllabs-scan/issues/387#issuecomment-242514633"
    },
    {
      "type": "REPORT",
      "url": "https://nakedsecurity.sophos.com/2016/08/25/anatomy-of-a-cryptographic-collision-the-sweet32-attack/"
    },
    {
      "type": "REPORT",
      "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCvb05575"
    },
    {
      "type": "REPORT",
      "url": "https://security-tracker.debian.org/tracker/CVE-2016-2183"
    },
    {
      "type": "REPORT",
      "url": "https://twitter.com/symantec/status/768786631159603200"
    },
    {
      "type": "REPORT",
      "url": "https://www.ietf.org/mail-archive/web/tls/current/msg04560.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2016/august/new-practical-attacks-on-64-bit-block-ciphers-3des-blowfish/"
    },
    {
      "type": "REPORT",
      "url": "https://www.openssl.org/blog/blog/2016/08/24/sweet32/"
    },
    {
      "type": "REPORT",
      "url": "https://www.sigsac.org/ccs/CCS2016/accepted-papers/"
    },
    {
      "type": "REPORT",
      "url": "https://www.suse.com/security/cve/CVE-2016-2183.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.teskalabs.com/blog/teskalabs-bulletin-160826-seacat-sweet32-issue"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3087-1"
    },
    {
      "type": "REPORT",
      "url": "http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/5d2bb853ae31"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3179-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3194-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3198-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3270-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3372-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2016-2183"
    }
  ],
  "related": [
    "USN-3087-1",
    "USN-3179-1",
    "USN-3194-1",
    "USN-3198-1",
    "USN-3270-1",
    "USN-3372-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2016-2183"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.