diff options
Diffstat (limited to 'gnu/packages/patches/libtirpc-CVE-2017-8779.patch')
| -rw-r--r-- | gnu/packages/patches/libtirpc-CVE-2017-8779.patch | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/gnu/packages/patches/libtirpc-CVE-2017-8779.patch b/gnu/packages/patches/libtirpc-CVE-2017-8779.patch deleted file mode 100644 index 742e64df25..0000000000 --- a/gnu/packages/patches/libtirpc-CVE-2017-8779.patch +++ /dev/null @@ -1,263 +0,0 @@ -Fix CVE-2017-8779: - -https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8779 - -Patch copied from the bug reporter's 3rd-party repository: - -https://github.com/guidovranken/rpcbomb/blob/master/libtirpc_patch.txt - -diff --git a/src/rpc_generic.c b/src/rpc_generic.c -index 2f09a8f..589cbd5 100644 ---- a/src/rpc_generic.c -+++ b/src/rpc_generic.c -@@ -615,6 +615,9 @@ __rpc_taddr2uaddr_af(int af, const struct netbuf *nbuf) - - switch (af) { - case AF_INET: -+ if (nbuf->len < sizeof(*sin)) { -+ return NULL; -+ } - sin = nbuf->buf; - if (inet_ntop(af, &sin->sin_addr, namebuf, sizeof namebuf) - == NULL) -@@ -626,6 +629,9 @@ __rpc_taddr2uaddr_af(int af, const struct netbuf *nbuf) - break; - #ifdef INET6 - case AF_INET6: -+ if (nbuf->len < sizeof(*sin6)) { -+ return NULL; -+ } - sin6 = nbuf->buf; - if (inet_ntop(af, &sin6->sin6_addr, namebuf6, sizeof namebuf6) - == NULL) -@@ -667,6 +673,8 @@ __rpc_uaddr2taddr_af(int af, const char *uaddr) - - port = 0; - sin = NULL; -+ if (uaddr == NULL) -+ return NULL; - addrstr = strdup(uaddr); - if (addrstr == NULL) - return NULL; -diff --git a/src/rpcb_prot.c b/src/rpcb_prot.c -index 43fd385..a923c8e 100644 ---- a/src/rpcb_prot.c -+++ b/src/rpcb_prot.c -@@ -41,6 +41,7 @@ - #include <rpc/types.h> - #include <rpc/xdr.h> - #include <rpc/rpcb_prot.h> -+#include "rpc_com.h" - - bool_t - xdr_rpcb(xdrs, objp) -@@ -53,13 +54,13 @@ xdr_rpcb(xdrs, objp) - if (!xdr_u_int32_t(xdrs, &objp->r_vers)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->r_netid, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->r_netid, RPC_MAXDATASIZE)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->r_addr, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->r_addr, RPC_MAXDATASIZE)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->r_owner, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->r_owner, RPC_MAXDATASIZE)) { - return (FALSE); - } - return (TRUE); -@@ -159,19 +160,19 @@ xdr_rpcb_entry(xdrs, objp) - XDR *xdrs; - rpcb_entry *objp; - { -- if (!xdr_string(xdrs, &objp->r_maddr, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->r_maddr, RPC_MAXDATASIZE)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->r_nc_netid, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->r_nc_netid, RPC_MAXDATASIZE)) { - return (FALSE); - } - if (!xdr_u_int32_t(xdrs, &objp->r_nc_semantics)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->r_nc_protofmly, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->r_nc_protofmly, RPC_MAXDATASIZE)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->r_nc_proto, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->r_nc_proto, RPC_MAXDATASIZE)) { - return (FALSE); - } - return (TRUE); -@@ -292,7 +293,7 @@ xdr_rpcb_rmtcallres(xdrs, p) - bool_t dummy; - struct r_rpcb_rmtcallres *objp = (struct r_rpcb_rmtcallres *)(void *)p; - -- if (!xdr_string(xdrs, &objp->addr, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->addr, RPC_MAXDATASIZE)) { - return (FALSE); - } - if (!xdr_u_int(xdrs, &objp->results.results_len)) { -@@ -312,6 +313,11 @@ xdr_netbuf(xdrs, objp) - if (!xdr_u_int32_t(xdrs, (u_int32_t *) &objp->maxlen)) { - return (FALSE); - } -+ -+ if (objp->maxlen > RPC_MAXDATASIZE) { -+ return (FALSE); -+ } -+ - dummy = xdr_bytes(xdrs, (char **)&(objp->buf), - (u_int *)&(objp->len), objp->maxlen); - return (dummy); -diff --git a/src/rpcb_st_xdr.c b/src/rpcb_st_xdr.c -index 08db745..28e6a48 100644 ---- a/src/rpcb_st_xdr.c -+++ b/src/rpcb_st_xdr.c -@@ -37,6 +37,7 @@ - - - #include <rpc/rpc.h> -+#include "rpc_com.h" - - /* Link list of all the stats about getport and getaddr */ - -@@ -58,7 +59,7 @@ xdr_rpcbs_addrlist(xdrs, objp) - if (!xdr_int(xdrs, &objp->failure)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) { - return (FALSE); - } - -@@ -109,7 +110,7 @@ xdr_rpcbs_rmtcalllist(xdrs, objp) - IXDR_PUT_INT32(buf, objp->failure); - IXDR_PUT_INT32(buf, objp->indirect); - } -- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) { - return (FALSE); - } - if (!xdr_pointer(xdrs, (char **)&objp->next, -@@ -147,7 +148,7 @@ xdr_rpcbs_rmtcalllist(xdrs, objp) - objp->failure = (int)IXDR_GET_INT32(buf); - objp->indirect = (int)IXDR_GET_INT32(buf); - } -- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) { - return (FALSE); - } - if (!xdr_pointer(xdrs, (char **)&objp->next, -@@ -175,7 +176,7 @@ xdr_rpcbs_rmtcalllist(xdrs, objp) - if (!xdr_int(xdrs, &objp->indirect)) { - return (FALSE); - } -- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) { -+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) { - return (FALSE); - } - if (!xdr_pointer(xdrs, (char **)&objp->next, -diff --git a/src/xdr.c b/src/xdr.c -index f3fb9ad..b9a1558 100644 ---- a/src/xdr.c -+++ b/src/xdr.c -@@ -42,8 +42,10 @@ - #include <stdlib.h> - #include <string.h> - -+#include <rpc/rpc.h> - #include <rpc/types.h> - #include <rpc/xdr.h> -+#include <rpc/rpc_com.h> - - typedef quad_t longlong_t; /* ANSI long long type */ - typedef u_quad_t u_longlong_t; /* ANSI unsigned long long type */ -@@ -53,7 +55,6 @@ typedef u_quad_t u_longlong_t; /* ANSI unsigned long long type */ - */ - #define XDR_FALSE ((long) 0) - #define XDR_TRUE ((long) 1) --#define LASTUNSIGNED ((u_int) 0-1) - - /* - * for unit alignment -@@ -629,6 +630,7 @@ xdr_bytes(xdrs, cpp, sizep, maxsize) - { - char *sp = *cpp; /* sp is the actual string pointer */ - u_int nodesize; -+ bool_t ret, allocated = FALSE; - - /* - * first deal with the length since xdr bytes are counted -@@ -652,6 +654,7 @@ xdr_bytes(xdrs, cpp, sizep, maxsize) - } - if (sp == NULL) { - *cpp = sp = mem_alloc(nodesize); -+ allocated = TRUE; - } - if (sp == NULL) { - warnx("xdr_bytes: out of memory"); -@@ -660,7 +663,14 @@ xdr_bytes(xdrs, cpp, sizep, maxsize) - /* FALLTHROUGH */ - - case XDR_ENCODE: -- return (xdr_opaque(xdrs, sp, nodesize)); -+ ret = xdr_opaque(xdrs, sp, nodesize); -+ if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) { -+ if (allocated == TRUE) { -+ free(sp); -+ *cpp = NULL; -+ } -+ } -+ return (ret); - - case XDR_FREE: - if (sp != NULL) { -@@ -754,6 +764,7 @@ xdr_string(xdrs, cpp, maxsize) - char *sp = *cpp; /* sp is the actual string pointer */ - u_int size; - u_int nodesize; -+ bool_t ret, allocated = FALSE; - - /* - * first deal with the length since xdr strings are counted-strings -@@ -793,8 +804,10 @@ xdr_string(xdrs, cpp, maxsize) - switch (xdrs->x_op) { - - case XDR_DECODE: -- if (sp == NULL) -+ if (sp == NULL) { - *cpp = sp = mem_alloc(nodesize); -+ allocated = TRUE; -+ } - if (sp == NULL) { - warnx("xdr_string: out of memory"); - return (FALSE); -@@ -803,7 +816,14 @@ xdr_string(xdrs, cpp, maxsize) - /* FALLTHROUGH */ - - case XDR_ENCODE: -- return (xdr_opaque(xdrs, sp, size)); -+ ret = xdr_opaque(xdrs, sp, size); -+ if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) { -+ if (allocated == TRUE) { -+ free(sp); -+ *cpp = NULL; -+ } -+ } -+ return (ret); - - case XDR_FREE: - mem_free(sp, nodesize); -@@ -823,7 +843,7 @@ xdr_wrapstring(xdrs, cpp) - XDR *xdrs; - char **cpp; - { -- return xdr_string(xdrs, cpp, LASTUNSIGNED); -+ return xdr_string(xdrs, cpp, RPC_MAXDATASIZE); - } - - /* |