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From 2f7530077e0ef79d98718138716bc51ca0cad658 Mon Sep 17 00:00:00 2001
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From: Hugo Landau <hlandau@openssl.org>
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Date: Tue, 17 Jan 2023 17:45:42 +0000
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Subject: [PATCH 14/18] CVE-2023-0286: Fix GENERAL_NAME_cmp for x400Address
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(3.0)
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Reviewed-by: Paul Dale <pauli@openssl.org>
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Reviewed-by: Tomas Mraz <tomas@openssl.org>
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---
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CHANGES.md | 19 +++++++++++++++++++
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crypto/x509/v3_genn.c | 2 +-
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include/openssl/x509v3.h.in | 2 +-
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test/v3nametest.c | 8 ++++++++
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4 files changed, 29 insertions(+), 2 deletions(-)
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diff --git a/crypto/x509/v3_genn.c b/crypto/x509/v3_genn.c
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index c0a7166cd0..1741c2d2f6 100644
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--- a/crypto/x509/v3_genn.c
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+++ b/crypto/x509/v3_genn.c
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@@ -98,7 +98,7 @@ int GENERAL_NAME_cmp(GENERAL_NAME *a, GENERAL_NAME *b)
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return -1;
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switch (a->type) {
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case GEN_X400:
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- result = ASN1_TYPE_cmp(a->d.x400Address, b->d.x400Address);
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+ result = ASN1_STRING_cmp(a->d.x400Address, b->d.x400Address);
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break;
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case GEN_EDIPARTY:
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diff --git a/include/openssl/x509v3.h.in b/include/openssl/x509v3.h.in
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index d00a66a343..c087e3cf92 100644
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--- a/include/openssl/x509v3.h.in
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+++ b/include/openssl/x509v3.h.in
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@@ -154,7 +154,7 @@ typedef struct GENERAL_NAME_st {
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OTHERNAME *otherName; /* otherName */
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ASN1_IA5STRING *rfc822Name;
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ASN1_IA5STRING *dNSName;
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- ASN1_TYPE *x400Address;
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+ ASN1_STRING *x400Address;
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X509_NAME *directoryName;
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EDIPARTYNAME *ediPartyName;
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ASN1_IA5STRING *uniformResourceIdentifier;
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diff --git a/test/v3nametest.c b/test/v3nametest.c
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index 6d2e2f8e27..0341995dde 100644
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--- a/test/v3nametest.c
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+++ b/test/v3nametest.c
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@@ -644,6 +644,14 @@ static struct gennamedata {
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0xb7, 0x09, 0x02, 0x02
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},
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15
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+ }, {
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+ /*
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+ * Regression test for CVE-2023-0286.
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+ */
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+ {
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+ 0xa3, 0x00
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+ },
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+ 2
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}
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};
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--
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2.39.1
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