CVE-2016-2179
Published: 16 September 2016
The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial of service (memory consumption) by maintaining many crafted DTLS sessions simultaneously, related to d1_lib.c, statem_dtls.c, statem_lib.c, and statem_srvr.c.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
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 |
Released
(1.0.2i, 1.0.1u)
|
|
| 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=00a4c1421407b6ac796688871b0a49a179c694d9 upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=26f2c5774f117aea588e8f31fad38bcf14e83bec |
||
|
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 | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |