diff options
Diffstat (limited to 'main/krb5/CVE-2015-8629.patch')
| -rw-r--r-- | main/krb5/CVE-2015-8629.patch | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/main/krb5/CVE-2015-8629.patch b/main/krb5/CVE-2015-8629.patch deleted file mode 100644 index 1106460205..0000000000 --- a/main/krb5/CVE-2015-8629.patch +++ /dev/null @@ -1,45 +0,0 @@ -From df17a1224a3406f57477bcd372c61e04c0e5a5bb Mon Sep 17 00:00:00 2001 -From: Greg Hudson <ghudson@mit.edu> -Date: Fri, 8 Jan 2016 12:45:25 -0500 -Subject: [PATCH] Verify decoded kadmin C strings [CVE-2015-8629] - -In xdr_nullstring(), check that the decoded string is terminated with -a zero byte and does not contain any internal zero bytes. - -CVE-2015-8629: - -In all versions of MIT krb5, an authenticated attacker can cause -kadmind to read beyond the end of allocated memory by sending a string -without a terminating zero byte. Information leakage may be possible -for an attacker with permission to modify the database. - - CVSSv2 Vector: AV:N/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:OF/RC:C - -ticket: 8341 (new) -target_version: 1.14-next -target_version: 1.13-next -tags: pullup ---- - src/lib/kadm5/kadm_rpc_xdr.c | 9 ++++++++- - 1 file changed, 8 insertions(+), 1 deletion(-) - -diff --git a/src/lib/kadm5/kadm_rpc_xdr.c b/src/lib/kadm5/kadm_rpc_xdr.c -index 2bef858..ba67084 100644 ---- a/src/lib/kadm5/kadm_rpc_xdr.c -+++ b/src/lib/kadm5/kadm_rpc_xdr.c -@@ -64,7 +64,14 @@ bool_t xdr_nullstring(XDR *xdrs, char **objp) - return FALSE; - } - } -- return (xdr_opaque(xdrs, *objp, size)); -+ if (!xdr_opaque(xdrs, *objp, size)) -+ return FALSE; -+ /* Check that the unmarshalled bytes are a C string. */ -+ if ((*objp)[size - 1] != '\0') -+ return FALSE; -+ if (memchr(*objp, '\0', size - 1) != NULL) -+ return FALSE; -+ return TRUE; - - case XDR_ENCODE: - if (size != 0) |