009bd2b01c
* no releasenotes available yet https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.66_release_notes - update to NSS 3.65 * bmo#1709654 - Update for NetBSD configuration. * bmo#1709750 - Disable HPKE test when fuzzing. * bmo#1566124 - Optimize AES-GCM for ppc64le. * bmo#1699021 - Add AES-256-GCM to HPKE. * bmo#1698419 - ECH -10 updates. * bmo#1692930 - Update HPKE to final version. * bmo#1707130 - NSS should use modern algorithms in PKCS#12 files by default. * bmo#1703936 - New coverity/cpp scanner errors. * bmo#1697303 - NSS needs to update it's csp clearing to FIPS 180-3 standards. * bmo#1702663 - Need to support RSA PSS with Hashing PKCS #11 Mechanisms. * bmo#1705119 - Deadlock when using GCM and non-thread safe tokens. - refreshed patches - Firefox 90.0 requires NSS 3.66 OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/mozilla-nss?expand=0&rev=361
63 lines
2.1 KiB
Diff
63 lines
2.1 KiB
Diff
# HG changeset patch
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# User Hans Petter Jansson <hpj@cl.no>
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# Date 1574234739 -3600
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# Wed Nov 20 08:25:39 2019 +0100
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# Node ID 5396ffb26887cc0cd42b9f12cc6c8e3dfdaf194b
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# Parent f5cf5d16deb68e65b5dd4e799d9e8e3098400d62
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[PATCH] 22
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From 41dd171b242b0cb550d12760da110db7e2c21daf Mon Sep 17 00:00:00 2001
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---
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nss/lib/freebl/gcm.c | 16 ++++++++++++++++
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1 file changed, 16 insertions(+)
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Index: nss/lib/freebl/gcm.c
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===================================================================
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--- nss.orig/lib/freebl/gcm.c
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+++ nss/lib/freebl/gcm.c
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@@ -532,8 +532,14 @@ struct GCMContextStr {
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unsigned char tagKey[MAX_BLOCK_SIZE];
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PRBool ctr_context_init;
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gcmIVContext gcm_iv;
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+ unsigned long long gcm_iv_bytes;
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};
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+/* NIST SP-800-38D limits the use of GCM with a single IV to 2^39 - 256
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+ * bits which translates to 2^32 - 2 128bit blocks or 2^36 - 32 bytes
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+ */
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+#define MAX_GCM_BYTES_PER_IV ((1ULL << 36) - 32)
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+
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SECStatus gcm_InitCounter(GCMContext *gcm, const unsigned char *iv,
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unsigned int ivLen, unsigned int tagBits,
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const unsigned char *aad, unsigned int aadLen);
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@@ -673,6 +679,8 @@ gcm_InitCounter(GCMContext *gcm, const u
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goto loser;
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}
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+ gcm->gcm_iv_bytes = MAX_GCM_BYTES_PER_IV;
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+
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/* finally mix in the AAD data */
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rv = gcmHash_Reset(ghash, aad, aadLen);
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if (rv != SECSuccess) {
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@@ -774,6 +782,13 @@ GCM_EncryptUpdate(GCMContext *gcm, unsig
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return SECFailure;
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}
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+ /* bail out if this invocation requests processing more than what is
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+ * considered to be a safe limit */
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+ if (gcm->gcm_iv_bytes < (unsigned long long)inlen) {
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+ PORT_SetError(SEC_ERROR_INPUT_LEN);
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+ return SECFailure;
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+ }
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+
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tagBytes = (gcm->tagBits + (PR_BITS_PER_BYTE - 1)) / PR_BITS_PER_BYTE;
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if (UINT_MAX - inlen < tagBytes) {
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PORT_SetError(SEC_ERROR_INPUT_LEN);
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@@ -802,6 +817,7 @@ GCM_EncryptUpdate(GCMContext *gcm, unsig
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*outlen = 0;
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return SECFailure;
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};
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+ gcm->gcm_iv_bytes -= inlen;
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*outlen += len;
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return SECSuccess;
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}
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