[qt5] Apply CVE fixes (#32031)

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Osyotr 2023-06-17 02:14:53 +03:00 committed by GitHub
parent ae56ff4adb
commit a76139fb41
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6 changed files with 129 additions and 2 deletions

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@ -0,0 +1,68 @@
--- a/src/network/kernel/qdnslookup_unix.cpp
+++ b/src/network/kernel/qdnslookup_unix.cpp
@@ -227,7 +227,6 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
// responseLength in case of error, we still can extract the
// exact error code from the response.
HEADER *header = (HEADER*)response;
- const int answerCount = ntohs(header->ancount);
switch (header->rcode) {
case NOERROR:
break;
@@ -260,18 +259,31 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
return;
}
- // Skip the query host, type (2 bytes) and class (2 bytes).
char host[PACKETSZ], answer[PACKETSZ];
unsigned char *p = response + sizeof(HEADER);
- int status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
- if (status < 0) {
+ int status;
+
+ if (ntohs(header->qdcount) == 1) {
+ // Skip the query host, type (2 bytes) and class (2 bytes).
+ status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
+ if (status < 0) {
+ reply->error = QDnsLookup::InvalidReplyError;
+ reply->errorString = tr("Could not expand domain name");
+ return;
+ }
+ if ((p - response) + status + 4 >= responseLength)
+ header->qdcount = 0xffff; // invalid reply below
+ else
+ p += status + 4;
+ }
+ if (ntohs(header->qdcount) > 1) {
reply->error = QDnsLookup::InvalidReplyError;
- reply->errorString = tr("Could not expand domain name");
+ reply->errorString = tr("Invalid reply received");
return;
}
- p += status + 4;
// Extract results.
+ const int answerCount = ntohs(header->ancount);
int answerIndex = 0;
while ((p < response + responseLength) && (answerIndex < answerCount)) {
status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
@@ -283,6 +295,11 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
const QString name = QUrl::fromAce(host);
p += status;
+
+ if ((p - response) + 10 > responseLength) {
+ // probably just a truncated reply, return what we have
+ return;
+ }
const quint16 type = (p[0] << 8) | p[1];
p += 2; // RR type
p += 2; // RR class
@@ -290,6 +307,8 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
p += 4;
const quint16 size = (p[0] << 8) | p[1];
p += 2;
+ if ((p - response) + size > responseLength)
+ return; // truncated
if (type == QDnsLookup::A) {
if (size != 4) {

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@ -0,0 +1,52 @@
--- a/src/network/ssl/qsslsocket_schannel.cpp
+++ b/src/network/ssl/qsslsocket_schannel.cpp
@@ -1880,6 +1880,28 @@ bool QSslSocketBackendPrivate::verifyCertContext(CERT_CONTEXT *certContext)
if (configuration.peerVerifyDepth > 0 && DWORD(configuration.peerVerifyDepth) < verifyDepth)
verifyDepth = DWORD(configuration.peerVerifyDepth);
+ const auto &caCertificates = q->sslConfiguration().caCertificates();
+
+ if (!rootCertOnDemandLoadingAllowed()
+ && !(chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_PARTIAL_CHAIN)
+ && (q->peerVerifyMode() == QSslSocket::VerifyPeer
+ || (isClient && q->peerVerifyMode() == QSslSocket::AutoVerifyPeer))) {
+ // When verifying a peer Windows "helpfully" builds a chain that
+ // may include roots from the system store. But we don't want that if
+ // the user has set their own CA certificates.
+ // Since Windows claims this is not a partial chain the root is included
+ // and we have to check that it is one of our configured CAs.
+ CERT_CHAIN_ELEMENT *element = chain->rgpElement[chain->cElement - 1];
+ QSslCertificate certificate = getCertificateFromChainElement(element);
+ if (!caCertificates.contains(certificate)) {
+ auto error = QSslError(QSslError::CertificateUntrusted, certificate);
+ sslErrors += error;
+ emit q->peerVerifyError(error);
+ if (q->state() != QAbstractSocket::ConnectedState)
+ return false;
+ }
+ }
+
for (DWORD i = 0; i < verifyDepth; i++) {
CERT_CHAIN_ELEMENT *element = chain->rgpElement[i];
QSslCertificate certificate = getCertificateFromChainElement(element);
--- a/src/network/ssl/qsslsocket.cpp
+++ b/src/network/ssl/qsslsocket.cpp
@@ -2221,6 +2221,10 @@ QSslSocketPrivate::QSslSocketPrivate()
, flushTriggered(false)
{
QSslConfigurationPrivate::deepCopyDefaultConfiguration(&configuration);
+ // If the global configuration doesn't allow root certificates to be loaded
+ // on demand then we have to disable it for this socket as well.
+ if (!configuration.allowRootCertOnDemandLoading)
+ allowRootCertOnDemandLoading = false;
}
/*!
@@ -2470,6 +2474,7 @@ void QSslConfigurationPrivate::deepCopyDefaultConfiguration(QSslConfigurationPri
ptr->sessionProtocol = global->sessionProtocol;
ptr->ciphers = global->ciphers;
ptr->caCertificates = global->caCertificates;
+ ptr->allowRootCertOnDemandLoading = global->allowRootCertOnDemandLoading;
ptr->protocol = global->protocol;
ptr->peerVerifyMode = global->peerVerifyMode;
ptr->peerVerifyDepth = global->peerVerifyDepth;

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@ -49,6 +49,8 @@ qt_download_submodule( OUT_SOURCE_PATH SOURCE_PATH
# CVE fixes from https://download.qt.io/official_releases/qt/5.15/
patches/CVE-2023-32762-qtbase-5.15.diff
patches/CVE-2023-32763-qtbase-5.15.diff
patches/CVE-2023-33285-qtbase-5.15.diff
patches/CVE-2023-34410-qtbase-5.15.diff
patches/winmain_pro.patch #Moves qtmain to manual-link
patches/windows_prf.patch #fixes the qtmain dependency due to the above move

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@ -1,7 +1,7 @@
{
"name": "qt5-base",
"version": "5.15.10",
"port-version": 1,
"port-version": 2,
"description": "Qt5 Application Framework Base Module. Includes Core, GUI, Widgets, Networking, SQL, Concurrent and other essential qt components.",
"homepage": "https://www.qt.io/",
"license": null,

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@ -6582,7 +6582,7 @@
},
"qt5-base": {
"baseline": "5.15.10",
"port-version": 1
"port-version": 2
},
"qt5-canvas3d": {
"baseline": "0",

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@ -1,5 +1,10 @@
{
"versions": [
{
"git-tree": "47eb2c538dd9220fcf44ca6a72f1aa64e4fb8d26",
"version": "5.15.10",
"port-version": 2
},
{
"git-tree": "3088e8df941cddfdc7dd5a5b6efae7386cb3d388",
"version": "5.15.10",