guix/gnu/packages/patches/nss-CVE-2019-11745.patch
Mark H Weaver 04b33ce205
gnu: nss: Fix CVE-2019-11745 via graft.
* gnu/packages/patches/nss-CVE-2019-11745.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/nss.scm (nss/fixed): New variable.
(nss)[replacement]: Add field.
2019-12-11 01:52:10 -05:00

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Diff

Fix CVE-2019-11745 (Out-of-bounds write when passing an output buffer smaller
than the block size to NSC_EncryptUpdate).
Copied from Debian, equivalent to upstream fix:
<https://hg.mozilla.org/projects/nss/rev/1e22a0c93afe9f46545560c86caedef9dab6cfda>.
# HG changeset patch
# User Craig Disselkoen <cdisselk@cs.ucsd.edu>
# Date 1574189697 25200
# Node ID 60bca7c6dc6dc44579b9b3e0fb62ca3b82d92eec
# Parent 64e55c9f658e2a75f0835d00a8a1cdc2f25c74d6
Bug 1586176 - EncryptUpdate should use maxout not block size. r=franziskus
--- a/nss/lib/softoken/pkcs11c.c
+++ b/nss/lib/softoken/pkcs11c.c
@@ -1285,7 +1285,7 @@ NSC_EncryptUpdate(CK_SESSION_HANDLE hSes
}
/* encrypt the current padded data */
rv = (*context->update)(context->cipherInfo, pEncryptedPart,
- &padoutlen, context->blockSize, context->padBuf,
+ &padoutlen, maxout, context->padBuf,
context->blockSize);
if (rv != SECSuccess) {
return sftk_MapCryptError(PORT_GetError());