[app-emulation/qemu] CVE bump
This commit is contained in:
parent
7a2c24af06
commit
8ae35daa62
41
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-3214.patch
Normal file
41
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-3214.patch
Normal file
@ -0,0 +1,41 @@
|
||||
From: Petr Matousek <pmatouse@redhat.com>
|
||||
Date: Wed, 17 Jun 2015 10:46:11 +0000 (+0200)
|
||||
Subject: i8254: fix out-of-bounds memory access in pit_ioport_read()
|
||||
X-Git-Tag: v2.4.0-rc0~43^2~9
|
||||
X-Git-Url: http://git.qemu.org/?p=qemu.git;a=commitdiff_plain;h=d4862a87e31a51de9eb260f25c9e99a75efe3235;hp=9dacf32d2cbd66cbcce7944ebdfd6b2df20e33b8
|
||||
|
||||
i8254: fix out-of-bounds memory access in pit_ioport_read()
|
||||
|
||||
Due converting PIO to the new memory read/write api we no longer provide
|
||||
separate I/O region lenghts for read and write operations. As a result,
|
||||
reading from PIT Mode/Command register will end with accessing
|
||||
pit->channels with invalid index.
|
||||
|
||||
Fix this by ignoring read from the Mode/Command register.
|
||||
|
||||
This is CVE-2015-3214.
|
||||
|
||||
Reported-by: Matt Tait <matttait@google.com>
|
||||
Fixes: 0505bcdec8228d8de39ab1a02644e71999e7c052
|
||||
Cc: qemu-stable@nongnu.org
|
||||
Signed-off-by: Petr Matousek <pmatouse@redhat.com>
|
||||
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||||
---
|
||||
|
||||
diff --git a/hw/timer/i8254.c b/hw/timer/i8254.c
|
||||
index 3450c98..9b65a33 100644
|
||||
--- a/hw/timer/i8254.c
|
||||
+++ b/hw/timer/i8254.c
|
||||
@@ -196,6 +196,12 @@ static uint64_t pit_ioport_read(void *opaque, hwaddr addr,
|
||||
PITChannelState *s;
|
||||
|
||||
addr &= 3;
|
||||
+
|
||||
+ if (addr == 3) {
|
||||
+ /* Mode/Command register is write only, read is ignored */
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
s = &pit->channels[addr];
|
||||
if (s->status_latched) {
|
||||
s->status_latched = 0;
|
||||
75
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5154-1.patch
Normal file
75
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5154-1.patch
Normal file
@ -0,0 +1,75 @@
|
||||
From d2ff85854512574e7209f295e87b0835d5b032c6 Mon Sep 17 00:00:00 2001
|
||||
From: Kevin Wolf <kwolf@redhat.com>
|
||||
Date: Sun, 26 Jul 2015 23:42:53 -0400
|
||||
Subject: [PATCH] ide: Check array bounds before writing to io_buffer
|
||||
(CVE-2015-5154)
|
||||
|
||||
If the end_transfer_func of a command is called because enough data has
|
||||
been read or written for the current PIO transfer, and it fails to
|
||||
correctly call the command completion functions, the DRQ bit in the
|
||||
status register and s->end_transfer_func may remain set. This allows the
|
||||
guest to access further bytes in s->io_buffer beyond s->data_end, and
|
||||
eventually overflowing the io_buffer.
|
||||
|
||||
One case where this currently happens is emulation of the ATAPI command
|
||||
START STOP UNIT.
|
||||
|
||||
This patch fixes the problem by adding explicit array bounds checks
|
||||
before accessing the buffer instead of relying on end_transfer_func to
|
||||
function correctly.
|
||||
|
||||
Cc: qemu-stable@nongnu.org
|
||||
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
|
||||
Reviewed-by: John Snow <jsnow@redhat.com>
|
||||
---
|
||||
hw/ide/core.c | 16 ++++++++++++++++
|
||||
1 file changed, 16 insertions(+)
|
||||
|
||||
diff --git a/hw/ide/core.c b/hw/ide/core.c
|
||||
index 122e955..44fcc23 100644
|
||||
--- a/hw/ide/core.c
|
||||
+++ b/hw/ide/core.c
|
||||
@@ -2021,6 +2021,10 @@ void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
|
||||
}
|
||||
|
||||
p = s->data_ptr;
|
||||
+ if (p + 2 > s->data_end) {
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
*(uint16_t *)p = le16_to_cpu(val);
|
||||
p += 2;
|
||||
s->data_ptr = p;
|
||||
@@ -2042,6 +2046,10 @@ uint32_t ide_data_readw(void *opaque, uint32_t addr)
|
||||
}
|
||||
|
||||
p = s->data_ptr;
|
||||
+ if (p + 2 > s->data_end) {
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
ret = cpu_to_le16(*(uint16_t *)p);
|
||||
p += 2;
|
||||
s->data_ptr = p;
|
||||
@@ -2063,6 +2071,10 @@ void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
|
||||
}
|
||||
|
||||
p = s->data_ptr;
|
||||
+ if (p + 4 > s->data_end) {
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
*(uint32_t *)p = le32_to_cpu(val);
|
||||
p += 4;
|
||||
s->data_ptr = p;
|
||||
@@ -2084,6 +2096,10 @@ uint32_t ide_data_readl(void *opaque, uint32_t addr)
|
||||
}
|
||||
|
||||
p = s->data_ptr;
|
||||
+ if (p + 4 > s->data_end) {
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
ret = cpu_to_le32(*(uint32_t *)p);
|
||||
p += 4;
|
||||
s->data_ptr = p;
|
||||
26
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5154-2.patch
Normal file
26
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5154-2.patch
Normal file
@ -0,0 +1,26 @@
|
||||
From 03441c3a4a42beb25460dd11592539030337d0f8 Mon Sep 17 00:00:00 2001
|
||||
From: Kevin Wolf <kwolf@redhat.com>
|
||||
Date: Sun, 26 Jul 2015 23:42:53 -0400
|
||||
Subject: [PATCH] ide/atapi: Fix START STOP UNIT command completion
|
||||
|
||||
The command must be completed on all code paths. START STOP UNIT with
|
||||
pwrcnd set should succeed without doing anything.
|
||||
|
||||
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
|
||||
Reviewed-by: John Snow <jsnow@redhat.com>
|
||||
---
|
||||
hw/ide/atapi.c | 1 +
|
||||
1 file changed, 1 insertion(+)
|
||||
|
||||
diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c
|
||||
index 950e311..79dd167 100644
|
||||
--- a/hw/ide/atapi.c
|
||||
+++ b/hw/ide/atapi.c
|
||||
@@ -983,6 +983,7 @@ static void cmd_start_stop_unit(IDEState *s, uint8_t* buf)
|
||||
|
||||
if (pwrcnd) {
|
||||
/* eject/load only happens for power condition == 0 */
|
||||
+ ide_atapi_cmd_ok(s);
|
||||
return;
|
||||
}
|
||||
|
||||
69
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5154-3.patch
Normal file
69
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5154-3.patch
Normal file
@ -0,0 +1,69 @@
|
||||
From cb72cba83021fa42719e73a5249c12096a4d1cfc Mon Sep 17 00:00:00 2001
|
||||
From: Kevin Wolf <kwolf@redhat.com>
|
||||
Date: Sun, 26 Jul 2015 23:42:53 -0400
|
||||
Subject: [PATCH] ide: Clear DRQ after handling all expected accesses
|
||||
|
||||
This is additional hardening against an end_transfer_func that fails to
|
||||
clear the DRQ status bit. The bit must be unset as soon as the PIO
|
||||
transfer has completed, so it's better to do this in a central place
|
||||
instead of duplicating the code in all commands (and forgetting it in
|
||||
some).
|
||||
|
||||
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
|
||||
Reviewed-by: John Snow <jsnow@redhat.com>
|
||||
---
|
||||
hw/ide/core.c | 16 ++++++++++++----
|
||||
1 file changed, 12 insertions(+), 4 deletions(-)
|
||||
|
||||
diff --git a/hw/ide/core.c b/hw/ide/core.c
|
||||
index 44fcc23..50449ca 100644
|
||||
--- a/hw/ide/core.c
|
||||
+++ b/hw/ide/core.c
|
||||
@@ -2028,8 +2028,10 @@ void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
|
||||
*(uint16_t *)p = le16_to_cpu(val);
|
||||
p += 2;
|
||||
s->data_ptr = p;
|
||||
- if (p >= s->data_end)
|
||||
+ if (p >= s->data_end) {
|
||||
+ s->status &= ~DRQ_STAT;
|
||||
s->end_transfer_func(s);
|
||||
+ }
|
||||
}
|
||||
|
||||
uint32_t ide_data_readw(void *opaque, uint32_t addr)
|
||||
@@ -2053,8 +2055,10 @@ uint32_t ide_data_readw(void *opaque, uint32_t addr)
|
||||
ret = cpu_to_le16(*(uint16_t *)p);
|
||||
p += 2;
|
||||
s->data_ptr = p;
|
||||
- if (p >= s->data_end)
|
||||
+ if (p >= s->data_end) {
|
||||
+ s->status &= ~DRQ_STAT;
|
||||
s->end_transfer_func(s);
|
||||
+ }
|
||||
return ret;
|
||||
}
|
||||
|
||||
@@ -2078,8 +2082,10 @@ void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
|
||||
*(uint32_t *)p = le32_to_cpu(val);
|
||||
p += 4;
|
||||
s->data_ptr = p;
|
||||
- if (p >= s->data_end)
|
||||
+ if (p >= s->data_end) {
|
||||
+ s->status &= ~DRQ_STAT;
|
||||
s->end_transfer_func(s);
|
||||
+ }
|
||||
}
|
||||
|
||||
uint32_t ide_data_readl(void *opaque, uint32_t addr)
|
||||
@@ -2103,8 +2109,10 @@ uint32_t ide_data_readl(void *opaque, uint32_t addr)
|
||||
ret = cpu_to_le32(*(uint32_t *)p);
|
||||
p += 4;
|
||||
s->data_ptr = p;
|
||||
- if (p >= s->data_end)
|
||||
+ if (p >= s->data_end) {
|
||||
+ s->status &= ~DRQ_STAT;
|
||||
s->end_transfer_func(s);
|
||||
+ }
|
||||
return ret;
|
||||
}
|
||||
|
||||
40
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5158.patch
Normal file
40
app-emulation/qemu/files/qemu-2.3.0-CVE-2015-5158.patch
Normal file
@ -0,0 +1,40 @@
|
||||
commit c170aad8b057223b1139d72e5ce7acceafab4fa9
|
||||
Author: Paolo Bonzini <pbonzini@redhat.com>
|
||||
Date: Tue Jul 21 08:59:39 2015 +0200
|
||||
|
||||
scsi: fix buffer overflow in scsi_req_parse_cdb (CVE-2015-5158)
|
||||
|
||||
This is a guest-triggerable buffer overflow present in QEMU 2.2.0
|
||||
and newer. scsi_cdb_length returns -1 as an error value, but the
|
||||
caller does not check it.
|
||||
|
||||
Luckily, the massive overflow means that QEMU will just SIGSEGV,
|
||||
making the impact much smaller.
|
||||
|
||||
Reported-by: Zhu Donghai (朱东海) <donghai.zdh@alibaba-inc.com>
|
||||
Fixes: 1894df02811f6b79ea3ffbf1084599d96f316173
|
||||
Reviewed-by: Fam Zheng <famz@redhat.com>
|
||||
Cc: qemu-stable@nongnu.org
|
||||
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||||
|
||||
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
|
||||
index f50b2f0..f0ae462 100644
|
||||
--- a/hw/scsi/scsi-bus.c
|
||||
+++ b/hw/scsi/scsi-bus.c
|
||||
@@ -1239,10 +1239,15 @@ int scsi_cdb_length(uint8_t *buf) {
|
||||
int scsi_req_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf)
|
||||
{
|
||||
int rc;
|
||||
+ int len;
|
||||
|
||||
cmd->lba = -1;
|
||||
- cmd->len = scsi_cdb_length(buf);
|
||||
+ len = scsi_cdb_length(buf);
|
||||
+ if (len < 0) {
|
||||
+ return -1;
|
||||
+ }
|
||||
|
||||
+ cmd->len = len;
|
||||
switch (dev->type) {
|
||||
case TYPE_TAPE:
|
||||
rc = scsi_req_stream_xfer(cmd, dev, buf);
|
||||
@ -1,6 +1,6 @@
|
||||
# Copyright 1999-2015 Gentoo Foundation
|
||||
# Distributed under the terms of the GNU General Public License v2
|
||||
# $Header: /var/cvsroot/gentoo-x86/app-emulation/qemu/qemu-2.3.0-r2.ebuild,v 1.1 2015/06/12 14:19:29 vapier Exp $
|
||||
# $Header: /var/cvsroot/gentoo-x86/app-emulation/qemu/qemu-2.3.0-r4.ebuild,v 1.1 2015/07/27 19:32:48 cardoe Exp $
|
||||
|
||||
EAPI=5
|
||||
|
||||
@ -262,6 +262,11 @@ src_prepare() {
|
||||
epatch "${FILESDIR}"/qemu-1.7.0-cflags.patch
|
||||
epatch "${FILESDIR}"/${P}-CVE-2015-3456.patch #549404
|
||||
epatch "${FILESDIR}"/${P}-CVE-2015-3209.patch #551752
|
||||
epatch "${FILESDIR}"/${P}-CVE-2015-5158.patch #555680
|
||||
epatch "${FILESDIR}"/${P}-CVE-2015-3214.patch #556052
|
||||
epatch "${FILESDIR}"/${P}-CVE-2015-5154-1.patch #556050 / #555532
|
||||
epatch "${FILESDIR}"/${P}-CVE-2015-5154-2.patch #556050 / #555532
|
||||
epatch "${FILESDIR}"/${P}-CVE-2015-5154-3.patch #556050 / #555532`
|
||||
[[ -n ${BACKPORTS} ]] && \
|
||||
EPATCH_FORCE=yes EPATCH_SUFFIX="patch" EPATCH_SOURCE="${S}/patches" \
|
||||
epatch
|
||||
Loading…
Reference in New Issue
Block a user