CVE-2019-3862
Published: 21 March 2019
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
From the Ubuntu security team
It was discovered that libssh2 incorrectly handled SSH_MSG_CHANNEL_REQUEST packets. A remote attacker could possibly use this issue to cause a denial of service or obtain sensitive information.
Priority
Medium
CVSS 3 base score: 9.1
Status
| Package | Release | Status |
|---|---|---|
|
libssh2 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(1.8.0-2.1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(1.8.0-2.1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needed
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needed
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needed
|