1 files changed, 69 insertions, 0 deletions
diff --git a/gnu/packages/patches/qemu-CVE-2017-14167.patch b/gnu/packages/patches/qemu-CVE-2017-14167.patch
new file mode 100644
index 0000000000..a6007ac082
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2017-14167.patch
@@ -0,0 +1,69 @@
+Fix CVE-2017-14167:
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14167
+http://seclists.org/oss-sec/2017/q3/407
+
+Patch copied from upstream development mailing list:
+
+https://lists.nongnu.org/archive/html/qemu-devel/2017-09/msg01483.html
+
+From: Prasad J Pandit <address@hidden>
+
+While loading kernel via multiboot-v1 image, (flags & 0x00010000)
+indicates that multiboot header contains valid addresses to load
+the kernel image. These addresses are used to compute kernel
+size and kernel text offset in the OS image. Validate these
+address values to avoid an OOB access issue.
+
+This is CVE-2017-14167.
+
+Reported-by: Thomas Garnier <address@hidden>
+Signed-off-by: Prasad J Pandit <address@hidden>
+---
+ hw/i386/multiboot.c | 19 +++++++++++++++++++
+ 1 file changed, 19 insertions(+)
+
+Update: add CVE-ID to the commit message.
+
+diff --git a/hw/i386/multiboot.c b/hw/i386/multiboot.c
+index 6001f4caa2..c7b70c91d5 100644
+--- a/hw/i386/multiboot.c
++++ b/hw/i386/multiboot.c
+@@ -221,15 +221,34 @@ int load_multiboot(FWCfgState *fw_cfg,
+         uint32_t mh_header_addr = ldl_p(header+i+12);
+         uint32_t mh_load_end_addr = ldl_p(header+i+20);
+         uint32_t mh_bss_end_addr = ldl_p(header+i+24);
++
+         mh_load_addr = ldl_p(header+i+16);
++        if (mh_header_addr < mh_load_addr) {
++            fprintf(stderr, "invalid mh_load_addr address\n");
++            exit(1);
++        }
++
+         uint32_t mb_kernel_text_offset = i - (mh_header_addr - mh_load_addr);
+         uint32_t mb_load_size = 0;
+         mh_entry_addr = ldl_p(header+i+28);
+ 
+         if (mh_load_end_addr) {
++            if (mh_bss_end_addr < mh_load_addr) {
++                fprintf(stderr, "invalid mh_bss_end_addr address\n");
++                exit(1);
++            }
+             mb_kernel_size = mh_bss_end_addr - mh_load_addr;
++
++            if (mh_load_end_addr < mh_load_addr) {
++                fprintf(stderr, "invalid mh_load_end_addr address\n");
++                exit(1);
++            }
+             mb_load_size = mh_load_end_addr - mh_load_addr;
+         } else {
++            if (kernel_file_size < mb_kernel_text_offset) {
++                fprintf(stderr, "invalid kernel_file_size\n");
++                exit(1);
++            }
+             mb_kernel_size = kernel_file_size - mb_kernel_text_offset;
+             mb_load_size = mb_kernel_size;
+         }
+-- 
+2.13.5
+