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SUSE:SLE-12-SP1:GA
libssh2_org
libssh2_org-CVE-2019-3856.patch
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File libssh2_org-CVE-2019-3856.patch of Package libssh2_org
diff --git a/src/userauth.c b/src/userauth.c index cdfa25e..3946cf9 100644 --- a/src/userauth.c +++ b/src/userauth.c @@ -1734,6 +1734,13 @@ userauth_keyboard_interactive(LIBSSH2_SESSION * session, /* int num-prompts */ session->userauth_kybd_num_prompts = _libssh2_ntohu32(s); s += 4; + if(session->userauth_kybd_num_prompts && + session->userauth_kybd_num_prompts > 100) { + _libssh2_error(session, LIBSSH2_ERROR_OUT_OF_BOUNDARY, + "Too many replies for " + "keyboard-interactive prompts"); + goto cleanup; + } if(session->userauth_kybd_num_prompts) { session->userauth_kybd_prompts =
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