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CVE-2016-2177

Publication date 19 June 2016

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.

Read the notes from the security team

Status

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
15.10 wily Ignored end of life
14.04 LTS trusty
Fixed 1.0.1f-1ubuntu2.22
12.04 LTS precise
Fixed 1.0.1-4ubuntu5.39
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
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life

Notes


mdeslaur

USN-3087-1 fixed this CVE in Ubuntu 16.04 LTS. Other Ubuntu releases will be fixed in a future USN.

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3087-1
    • OpenSSL vulnerabilities
    • 22 September 2016
    • USN-3181-1
    • OpenSSL vulnerabilities
    • 31 January 2017

Other references