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Red Hat Bugzilla – Attachment 193381 Details for
Bug 250973
CVE-2007-3999 krb5 RPC library buffer overflow
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[patch]
Updated patch from MIT
CVE-2007-3999.patch (text/plain), 926 bytes, created by
Josh Bressers
on 2007-09-12 13:10:43 UTC
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Description:
Updated patch from MIT
Filename:
MIME Type:
Creator:
Josh Bressers
Created:
2007-09-12 13:10:43 UTC
Size:
926 bytes
patch
obsolete
>*** src/lib/rpc/svc_auth_gss.c (revision 20474) >--- src/lib/rpc/svc_auth_gss.c (local) >*************** >*** 355,360 **** >--- 355,369 ---- > memset(rpchdr, 0, sizeof(rpchdr)); > > /* XXX - Reconstruct RPC header for signing (from xdr_callmsg). */ >+ oa = &msg->rm_call.cb_cred; >+ if (oa->oa_length > MAX_AUTH_BYTES) >+ return (FALSE); >+ >+ /* 8 XDR units from the IXDR macro calls. */ >+ if (sizeof(rpchdr) < (8 * BYTES_PER_XDR_UNIT + >+ RNDUP(oa->oa_length))) >+ return (FALSE); >+ > buf = (int32_t *)(void *)rpchdr; > IXDR_PUT_LONG(buf, msg->rm_xid); > IXDR_PUT_ENUM(buf, msg->rm_direction); >*************** >*** 362,368 **** > IXDR_PUT_LONG(buf, msg->rm_call.cb_prog); > IXDR_PUT_LONG(buf, msg->rm_call.cb_vers); > IXDR_PUT_LONG(buf, msg->rm_call.cb_proc); >- oa = &msg->rm_call.cb_cred; > IXDR_PUT_ENUM(buf, oa->oa_flavor); > IXDR_PUT_LONG(buf, oa->oa_length); > if (oa->oa_length) { >--- 371,376 ----
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