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| author | delphij <delphij@FreeBSD.org> | 2017-08-10 06:59:26 +0000 |
|---|---|---|
| committer | delphij <delphij@FreeBSD.org> | 2017-08-10 06:59:26 +0000 |
| commit | 82d137a0d8be5edd7243ab4a253b076ceb9f5633 (patch) | |
| tree | 1398b970a9b8e825947bce39f4908bb775cc0cdb /crypto/openssh/auth-passwd.c | |
| parent | 348f5311d13a14a86bd5e73cfac8ac707498b87c (diff) | |
| download | FreeBSD-src-82d137a0d8be5edd7243ab4a253b076ceb9f5633.zip FreeBSD-src-82d137a0d8be5edd7243ab4a253b076ceb9f5633.tar.gz | |
Fix OpenSSH Denial of Service vulnerability. [SA-17:06]releng/11.0
Fix VNET kernel panic with asynchronous I/O. [EN-17:07]
Approved by: so
Diffstat (limited to 'crypto/openssh/auth-passwd.c')
| -rw-r--r-- | crypto/openssh/auth-passwd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/crypto/openssh/auth-passwd.c b/crypto/openssh/auth-passwd.c index 63ccf3c..f6825ec 100644 --- a/crypto/openssh/auth-passwd.c +++ b/crypto/openssh/auth-passwd.c @@ -66,6 +66,8 @@ extern login_cap_t *lc; #define DAY (24L * 60 * 60) /* 1 day in seconds */ #define TWO_WEEKS (2L * 7 * DAY) /* 2 weeks in seconds */ +#define MAX_PASSWORD_LEN 1024 + void disable_forwarding(void) { @@ -87,6 +89,9 @@ auth_password(Authctxt *authctxt, const char *password) static int expire_checked = 0; #endif + if (strlen(password) > MAX_PASSWORD_LEN) + return 0; + #ifndef HAVE_CYGWIN if (pw->pw_uid == 0 && options.permit_root_login != PERMIT_YES) ok = 0; |
