From 37acc8a07b37b7cd500496dec4d4737a389a2f7a Mon Sep 17 00:00:00 2001 From: Leo Famulari Date: Sun, 12 Feb 2017 09:20:08 -0500 Subject: gnu: qemu: Fix CVE-2017-{5667,5898,5931}. * gnu/packages/patches/qemu-CVE-2017-5667.patch, gnu/packages/patches/qemu-CVE-2017-5898.patch, gnu/packages/patches/qemu-CVE-2017-5931.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them. gnu/packages/qemu.scm (qemu)[source]: Use them. --- gnu/packages/patches/qemu-CVE-2017-5667.patch | 46 +++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 gnu/packages/patches/qemu-CVE-2017-5667.patch (limited to 'gnu/packages/patches/qemu-CVE-2017-5667.patch') diff --git a/gnu/packages/patches/qemu-CVE-2017-5667.patch b/gnu/packages/patches/qemu-CVE-2017-5667.patch new file mode 100644 index 0000000000..5adea0d278 --- /dev/null +++ b/gnu/packages/patches/qemu-CVE-2017-5667.patch @@ -0,0 +1,46 @@ +Fix CVE-2017-5667 (sdhci OOB access during multi block SDMA transfer): + +http://seclists.org/oss-sec/2017/q1/243 +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5667 + +Patch copied from upstream source repository: + +http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=42922105beb14c2fc58185ea022b9f72fb5465e9 + +From 42922105beb14c2fc58185ea022b9f72fb5465e9 Mon Sep 17 00:00:00 2001 +From: Prasad J Pandit +Date: Tue, 7 Feb 2017 18:29:59 +0000 +Subject: [PATCH] sd: sdhci: check data length during dma_memory_read + +While doing multi block SDMA transfer in routine +'sdhci_sdma_transfer_multi_blocks', the 's->fifo_buffer' starting +index 'begin' and data length 's->data_count' could end up to be same. +This could lead to an OOB access issue. Correct transfer data length +to avoid it. + +Cc: qemu-stable@nongnu.org +Reported-by: Jiang Xin +Signed-off-by: Prasad J Pandit +Reviewed-by: Peter Maydell +Message-id: 20170130064736.9236-1-ppandit@redhat.com +Signed-off-by: Peter Maydell +--- + hw/sd/sdhci.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c +index 01fbf228be..5bd5ab6319 100644 +--- a/hw/sd/sdhci.c ++++ b/hw/sd/sdhci.c +@@ -536,7 +536,7 @@ static void sdhci_sdma_transfer_multi_blocks(SDHCIState *s) + boundary_count -= block_size - begin; + } + dma_memory_read(&address_space_memory, s->sdmasysad, +- &s->fifo_buffer[begin], s->data_count); ++ &s->fifo_buffer[begin], s->data_count - begin); + s->sdmasysad += s->data_count - begin; + if (s->data_count == block_size) { + for (n = 0; n < block_size; n++) { +-- +2.11.1 + -- cgit v1.2.3