microsoft · LeoMar4 · Feb 3, 2026 · Feb 2, 2026 · Feb 2, 2026
@@ -6,7 +6,7 @@
 Summary:        Signed HvLoader.efi for %{buildarch} systems
 Name:           hvloader-signed-%{buildarch}
 Version:        1.0.1
-Release:        16%{?dist}
+Release:        17%{?dist}
 License:        MIT
 Vendor:         Microsoft Corporation
 Distribution:   Mariner
@@ -69,6 +69,9 @@ popd
 /boot/efi/HvLoader.efi
 
 %changelog
+* Mon Feb 02 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 1.0.1-17
+- Bump release for consistency with hvloader spec.
+
 * Tue Jan 06 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 1.0.1-16
 - Bump release for consistency with hvloader spec.
 

@@ -0,0 +1,81 @@
+From ee8b48af7a053a62baba11a21e08c0cfba4b695b Mon Sep 17 00:00:00 2001
+From: Neil Horman <nhorman@openssl.org>
+Date: Wed, 7 Jan 2026 11:52:09 -0500
+Subject: [PATCH] Fix heap buffer overflow in BIO_f_linebuffer
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When a FIO_f_linebuffer is part of a bio chain, and the next BIO
+preforms short writes, the remainder of the unwritten buffer is copied
+unconditionally to the internal buffer ctx->obuf, which may not be
+sufficiently sized to handle the remaining data, resulting in a buffer
+overflow.
+
+Fix it by only copying data when ctx->obuf has space, flushing to the
+next BIO to increase available storage if needed.
+
+Fixes openssl/srt#48
+
+Fixes CVE-2025-68160
+
+Reviewed-by: Nikola Pajkovsky <nikolap@openssl.org>
+Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
+Reviewed-by: Saša Nedvědický <sashan@openssl.org>
+Reviewed-by: Tomas Mraz <tomas@openssl.org>
+MergeDate: Mon Jan 26 19:41:40 2026
+(cherry picked from commit b21663c35a6f0ed4c8de06855bdc7a6a21f00c2f)
+Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
+Upstream-reference: https://github.com/openssl/openssl/commit/475c466ef2fbd8fc1df6fae1c3eed9c813fc8ff6.patch
+---
+ .../OpensslLib/openssl/crypto/bio/bf_lbuf.c   | 32 +++++++++++++++----
+ 1 file changed, 26 insertions(+), 6 deletions(-)
+
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/bio/bf_lbuf.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/bio/bf_lbuf.c
+index 72f99018..34dd0357 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/bio/bf_lbuf.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/bio/bf_lbuf.c
+@@ -191,14 +191,34 @@ static int linebuffer_write(BIO *b, const char *in, int inl)
+     while (foundnl && inl > 0);
+     /*
+      * We've written as much as we can.  The rest of the input buffer, if
+-     * any, is text that doesn't and with a NL and therefore needs to be
+-     * saved for the next trip.
++     * any, is text that doesn't end with a NL and therefore we need to try
++     * free up some space in our obuf so we can make forward progress.
+      */
+-    if (inl > 0) {
+-        memcpy(&(ctx->obuf[ctx->obuf_len]), in, inl);
+-        ctx->obuf_len += inl;
+-        num += inl;
++    while (inl > 0) {
++        size_t avail = (size_t)ctx->obuf_size - (size_t)ctx->obuf_len;
++        size_t to_copy;
++
++        if (avail == 0) {
++            /* Flush buffered data to make room */
++            i = BIO_write(b->next_bio, ctx->obuf, ctx->obuf_len);
++            if (i <= 0) {
++                BIO_copy_next_retry(b);
++                return num > 0 ? num : i;
++            }
++            if (i < ctx->obuf_len)
++                memmove(ctx->obuf, ctx->obuf + i, ctx->obuf_len - i);
++            ctx->obuf_len -= i;
++            continue;
++        }
++
++        to_copy = inl > (int)avail ? avail : (size_t)inl;
++        memcpy(&(ctx->obuf[ctx->obuf_len]), in, to_copy);
++        ctx->obuf_len += (int)to_copy;
++        in += to_copy;
++        inl -= (int)to_copy;
++        num += (int)to_copy;
+     }
++
+     return num;
+ }
+
+-- 
+2.45.4
+
@@ -0,0 +1,78 @@
+From 7b4ea5f9ec9330d4b26e74e83feb9e03949e3c43 Mon Sep 17 00:00:00 2001
+From: Norbert Pocs <norbertp@openssl.org>
+Date: Thu, 8 Jan 2026 15:04:54 +0100
+Subject: [PATCH] Fix OCB AES-NI/HW stream path unauthenticated/unencrypted
+ trailing bytes
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When ctx->stream (e.g., AES‑NI or ARMv8 CE) is available, the fast path
+encrypts/decrypts full blocks but does not advance in/out pointers. The
+tail-handling code then operates on the base pointers, effectively reprocessing
+the beginning of the buffer while leaving the actual trailing bytes
+unencrypted (encryption) or using the wrong plaintext (decryption). The
+authentication checksum excludes the true tail.
+
+CVE-2025-69418
+
+Fixes: https://github.com/openssl/srt/issues/58
+
+Signed-off-by: Norbert Pocs <norbertp@openssl.org>
+
+Reviewed-by: Saša Nedvědický <sashan@openssl.org>
+Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
+Reviewed-by: Tomas Mraz <tomas@openssl.org>
+MergeDate: Mon Jan 26 19:48:35 2026
+(cherry picked from commit be9375d5d45dfaf897b56ef148a0b58402491fcb)
+Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
+Upstream-reference: https://github.com/openssl/openssl/commit/52d23c86a54adab5ee9f80e48b242b52c4cc2347.patch
+---
+ .../Library/OpensslLib/openssl/crypto/modes/ocb128.c   | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/modes/ocb128.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/modes/ocb128.c
+index b39a55a1..2ef39826 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/modes/ocb128.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/modes/ocb128.c
+@@ -342,7 +342,7 @@ int CRYPTO_ocb128_encrypt(OCB128_CONTEXT *ctx,
+
+     if (num_blocks && all_num_blocks == (size_t)all_num_blocks
+         && ctx->stream != NULL) {
+-        size_t max_idx = 0, top = (size_t)all_num_blocks;
++        size_t max_idx = 0, top = (size_t)all_num_blocks, processed_bytes = 0;
+
+         /*
+          * See how many L_{i} entries we need to process data at hand
+@@ -356,6 +356,9 @@ int CRYPTO_ocb128_encrypt(OCB128_CONTEXT *ctx,
+         ctx->stream(in, out, num_blocks, ctx->keyenc,
+                     (size_t)ctx->sess.blocks_processed + 1, ctx->sess.offset.c,
+                     (const unsigned char (*)[16])ctx->l, ctx->sess.checksum.c);
++        processed_bytes = num_blocks * 16;
++        in += processed_bytes;
++        out += processed_bytes;
+     } else {
+         /* Loop through all full blocks to be encrypted */
+         for (i = ctx->sess.blocks_processed + 1; i <= all_num_blocks; i++) {
+@@ -434,7 +437,7 @@ int CRYPTO_ocb128_decrypt(OCB128_CONTEXT *ctx,
+
+     if (num_blocks && all_num_blocks == (size_t)all_num_blocks
+         && ctx->stream != NULL) {
+-        size_t max_idx = 0, top = (size_t)all_num_blocks;
++        size_t max_idx = 0, top = (size_t)all_num_blocks, processed_bytes = 0;
+
+         /*
+          * See how many L_{i} entries we need to process data at hand
+@@ -448,6 +451,9 @@ int CRYPTO_ocb128_decrypt(OCB128_CONTEXT *ctx,
+         ctx->stream(in, out, num_blocks, ctx->keydec,
+                     (size_t)ctx->sess.blocks_processed + 1, ctx->sess.offset.c,
+                     (const unsigned char (*)[16])ctx->l, ctx->sess.checksum.c);
++        processed_bytes = num_blocks * 16;
++        in += processed_bytes;
++        out += processed_bytes;
+     } else {
+         OCB_BLOCK tmp;
+
+-- 
+2.45.4
+
@@ -0,0 +1,77 @@
+From 73b2e98599a813f617b20d5860e2587b385b4aff Mon Sep 17 00:00:00 2001
+From: Bob Beck <beck@openssl.org>
+Date: Wed, 7 Jan 2026 11:29:48 -0700
+Subject: [PATCH] Ensure ASN1 types are checked before use.
+
+Some of these were fixed by LibreSSL in commit https://github.com/openbsd/src/commit/aa1f637d454961d22117b4353f98253e984b3ba8
+this fix includes the other fixes in that commit, as well as fixes for others found by a scan
+for a similar unvalidated access paradigm in the tree.
+
+Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
+Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
+Reviewed-by: Tomas Mraz <tomas@openssl.org>
+(Merged from https://github.com/openssl/openssl/pull/29582)
+
+Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
+Upstream-reference: https://github.com/openssl/openssl/commit/572844beca95068394c916626a6d3a490f831a49.patch
+---
+ CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c   |  3 ++-
+ .../OpensslLib/openssl/crypto/pkcs12/p12_kiss.c        | 10 ++++++++--
+ .../Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c |  2 ++
+ 3 files changed, 12 insertions(+), 3 deletions(-)
+
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c b/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c
+index 00effc80..6e8cc6e9 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c
+@@ -2698,8 +2698,9 @@ int s_client_main(int argc, char **argv)
+                 goto end;
+             }
+             atyp = ASN1_generate_nconf(genstr, cnf);
+-            if (atyp == NULL) {
++        if (atyp == NULL || atyp->type != V_ASN1_SEQUENCE) {
+                 NCONF_free(cnf);
++            ASN1_TYPE_free(atyp);
+                 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
+                 goto end;
+             }
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c
+index 7ab98385..d90404dd 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c
+@@ -183,11 +183,17 @@ static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
+     ASN1_BMPSTRING *fname = NULL;
+     ASN1_OCTET_STRING *lkid = NULL;
+
+-    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_friendlyName)))
++    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_friendlyName))) {
++        if (attrib->type != V_ASN1_BMPSTRING)
++            return 0;
+         fname = attrib->value.bmpstring;
++    }
+
+-    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_localKeyID)))
++    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_localKeyID))) {
++        if (attrib->type != V_ASN1_OCTET_STRING)
++            return 0;
+         lkid = attrib->value.octet_string;
++    }
+
+     switch (PKCS12_SAFEBAG_get_nid(bag)) {
+     case NID_keyBag:
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c
+index f63fbc50..4e0eb1e8 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c
+@@ -1092,6 +1092,8 @@ ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk)
+     ASN1_TYPE *astype;
+     if ((astype = get_attribute(sk, NID_pkcs9_messageDigest)) == NULL)
+         return NULL;
++    if (astype->type != V_ASN1_OCTET_STRING)
++        return NULL;
+     return astype->value.octet_string;
+ }
+
+-- 
+2.45.4
+
@@ -4,7 +4,7 @@
 Summary:        HvLoader.efi is an EFI application for loading an external hypervisor loader.
 Name:           hvloader
 Version:        1.0.1
-Release:        16%{?dist}
+Release:        17%{?dist}
 License:        MIT
 Vendor:         Microsoft Corporation
 Distribution:   Mariner
@@ -37,6 +37,9 @@ Patch19:        CVE-2024-38796.patch
 Patch20:        CVE-2025-3770.patch
 Patch21:        CVE-2025-2296.patch
 Patch22:        CVE-2025-2295.patch
+Patch23:        CVE-2025-68160.patch
+Patch24:        CVE-2025-69418.patch
+Patch25:        CVE-2026-22796.patch
 
 BuildRequires:  bc
 BuildRequires:  gcc
@@ -82,6 +85,9 @@ cp ./Build/MdeModule/RELEASE_GCC5/X64/MdeModulePkg/Application/%{name_github}-%{
 /boot/efi/HvLoader.efi
 
 %changelog
+* Mon Feb 02 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 1.0.1-17
+- Patch for CVE-2026-22796, CVE-2025-68160, CVE-2025-69418
+
 * Tue Jan 06 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 1.0.1-16
 - Patch for CVE-2025-2295