CVE-2016-6304

Publication date 22 September 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

Multiple memory leaks in t1_lib.c in OpenSSL before 1.0.1u, 1.0.2 before 1.0.2i, and 1.1.0 before 1.1.0a allow remote attackers to cause a denial of service (memory consumption) via large OCSP Status Request extensions.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openssl	19.04 disco	Fixed 1.0.2g-1ubuntu9
	18.10 cosmic	Fixed 1.0.2g-1ubuntu9
	18.04 LTS bionic	Fixed 1.0.2g-1ubuntu9
	17.10 artful	Fixed 1.0.2g-1ubuntu9
	17.04 zesty	Fixed 1.0.2g-1ubuntu9
	16.10 yakkety	Fixed 1.0.2g-1ubuntu9
	16.04 LTS xenial	Fixed 1.0.2g-1ubuntu4.4
	14.04 LTS trusty	Fixed 1.0.1f-1ubuntu2.20
	12.04 LTS precise	Fixed 1.0.1-4ubuntu5.37
openssl098	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
openssl	Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=2c0d295e26306e15a92eb23a84a1802005c1c137 Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=ea39b16b71e4e72a228a4535bd6d6a02c5edbc1f

Severity score breakdown

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

References

Related Ubuntu Security Notices (USN)

USN-3087-1
OpenSSL vulnerabilities
22 September 2016