CVE-2016-2183

Published: 31 August 2016

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.

Notes

Author	Note
mdeslaur	DES ciphers aren't typically selected as there are other stronger ciphers placed earlier in default cipher lists gnutls puts AES before 3DES in the cipher list

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
gnutls26 Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	precise	Not vulnerable
	trusty	Not vulnerable
	upstream	Not vulnerable
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
gnutls28 Launchpad, Ubuntu, Debian	artful	Not vulnerable
	bionic	Not vulnerable
	cosmic	Not vulnerable
	disco	Not vulnerable
	precise	Not vulnerable
	trusty	Does not exist (trusty was not-affected)
	upstream	Not vulnerable
	xenial	Not vulnerable
	yakkety	Not vulnerable
	zesty	Not vulnerable
nss Launchpad, Ubuntu, Debian	artful	Released (2:3.28.4-0ubuntu1)
	bionic	Released (2:3.28.4-0ubuntu1)
	cosmic	Released (2:3.28.4-0ubuntu1)
	disco	Released (2:3.28.4-0ubuntu1)
	precise	Ignored (end of life)
	trusty	Released (2:3.28.4-0ubuntu0.14.04.1)
	upstream	Released (3.27)
	xenial	Released (2:3.28.4-0ubuntu0.16.04.1)
	yakkety	Released (2:3.28.4-0ubuntu0.16.10.1)
	zesty	Released (2:3.28.4-0ubuntu0.17.04.1)
	Patches: upstream: https://hg.mozilla.org/projects/nss/rev/a1b0b7023e19 upstream: https://hg.mozilla.org/projects/nss/rev/71da21e9d6e9
openjdk-6 Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	precise	Released (6b41-1.13.13-0ubuntu0.12.04.1)
	trusty	Released (6b41-1.13.13-0ubuntu0.14.04.1)
	upstream	Needs triage
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
openjdk-7 Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	precise	Released (7u121-2.6.8-1ubuntu0.12.04.3)
	trusty	Released (7u121-2.6.8-1ubuntu0.14.04.3)
	upstream	Needs triage
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
openjdk-8 Launchpad, Ubuntu, Debian	artful	Not vulnerable (8u121-b13-3)
	bionic	Not vulnerable (8u121-b13-3)
	cosmic	Not vulnerable (8u121-b13-3)
	disco	Not vulnerable (8u121-b13-3)
	precise	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Released (8u121-b13-0ubuntu1.16.04.2)
	yakkety	Released (8u121-b13-0ubuntu1.16.10.2)
	zesty	Not vulnerable (8u121-b13-3)
openssl Launchpad, Ubuntu, Debian	artful	Released (1.0.2g-1ubuntu9)
	bionic	Released (1.0.2g-1ubuntu9)
	cosmic	Released (1.0.2g-1ubuntu9)
	disco	Released (1.0.2g-1ubuntu9)
	precise	Released (1.0.1-4ubuntu5.37)
	trusty	Released (1.0.1f-1ubuntu2.20)
	upstream	Needs triage
	xenial	Released (1.0.2g-1ubuntu4.4)
	yakkety	Released (1.0.2g-1ubuntu9)
	zesty	Released (1.0.2g-1ubuntu9)
	Patches: upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=0fff5065884d5ac61123a604bbcee30a53c808ff upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=e95f5e03f6f1f8d3f6cbe4b7fa48e57b4cf8fd60
openssl098 Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	precise	Ignored (end of life)
	trusty	Does not exist (trusty was needs-triage)
	upstream	Needs triage
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Bugs

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›