CVE-2019-3863
Published: 25 March 2019
A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.
From the Ubuntu security team
It was discovered that libssh2 incorrectly handled interactive response messages length. A remote attacker could possibly use this issue to execute arbitrary code.
Priority
Medium
CVSS 3 base score: 8.8
Status
| Package | Release | Status |
|---|---|---|
|
libssh2 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.10 (Impish Indri) |
Not vulnerable
(1.8.0-2.1)
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
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 ESM (Xenial Xerus) |
Ignored
(end of standard support, was needed)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needed
|