CVE-2015-3146
Published: 5 May 2015
The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libssh Launchpad, Ubuntu, Debian |
precise |
Released
(0.5.2-1ubuntu0.12.04.6)
|
| trusty |
Released
(0.6.1-0ubuntu3.3)
|
|
| upstream |
Released
(0.6.5)
|
|
| utopic |
Ignored
(end of life)
|
|
| vivid |
Ignored
(end of life)
|
|
| wily |
Released
(0.6.3-3ubuntu3.2)
|
|
|
Patches: upstream: https://www.libssh.org/security/patches/CVE-2015-3146-libssh-0.5.5.patch |
||
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 |