CVE-2019-3863High· 7.5▾ TwilightA flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.7 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
3.4%
A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.
libssh2 < 1.8.1debian_linux = 8.0ontap_select_deploy_administration_utilityleap = 15.0leap = 42.3enterprise_linux_desktop = 7.0enterprise_linux_server = 7.0enterprise_linux_server_aus = 7.6enterprise_linux_server_eus = 7.6enterprise_linux_server_tus = 7.6enterprise_linux_workstation = 7.0Upgrade past the affected range:
libssh2 1.8.1Connected by shared product, vendor, weakness, or advisory.
CVE-2019-3856High· 8.8An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed
CVE-2019-3857High· 8.8An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed
CVE-2019-3855High· 8.8An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server
CVE-2019-3860Medium· 5.0An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed
CVE-2019-3861Medium· 5.0An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed
CVE-2019-3862High· 7.3An 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