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Red Hat Bugzilla – Attachment 152458 Details for
Bug 236121
LSPP: racoon has a buffer overflow when receiving large security context from kernel
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[patch]
patch increasing buffer size
ipsec-tools-0.6.5-context-increase.patch (text/plain), 748 bytes, created by
Steve Grubb
on 2007-04-12 15:04:31 UTC
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Description:
patch increasing buffer size
Filename:
MIME Type:
Creator:
Steve Grubb
Created:
2007-04-12 15:04:31 UTC
Size:
748 bytes
patch
obsolete
>diff -urp ipsec-tools-0.6.5.orig/src/racoon/policy.h ipsec-tools-0.6.5/src/racoon/policy.h >--- ipsec-tools-0.6.5.orig/src/racoon/policy.h 2007-04-12 09:56:11.000000000 -0400 >+++ ipsec-tools-0.6.5/src/racoon/policy.h 2007-04-12 10:57:30.000000000 -0400 >@@ -36,7 +36,11 @@ > > #ifdef HAVE_SECCTX > >-#define MAX_CTXSTR_SIZE 50 >+/* Current LSPP policy is 1024 compartments, 5 chars each 'c1024'. SE Linux >+ * will attempt to combine so, worst case is all odd or even numbers. The >+ * context size of SE Linux types is max'ed around 256. We allow 16 for >+ * sensitivity */ >+#define MAX_CTXSTR_SIZE 3344 /* (6 * 512) + 256 + 16 */ > struct security_ctx { > u_int8_t ctx_doi; /* Security Context DOI */ > u_int8_t ctx_alg; /* Security Context Algorithm */
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