A flaw was found in libssh2. A server could send a multiple keyboard interactive response messages, whose total length are greater than the unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error. The highest threat from this vulnerability is to data confidentiality and integrity and system availability.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | libssh2 | 2019-08-12 18:05 | ALAS-2019-1254 |
Amazon Linux 2 - Core | libssh2 | 2019-04-25 16:44 | ALAS2-2019-1199 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 7.5 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
NVD | CVSSv2 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
NVD | CVSSv3 | 7.5 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |