cnvd-2016-03771
Vulnerability from cnvd
Title: QEMU vmsvga_fifo_read_raw函数拒绝服务漏洞
Description:
QEMU是一款开源模拟器软件。
QEMU hw/display/vmware_vga.c/vmsvga_fifo_read_raw函数存在拒绝服务漏洞。本地OS用户通过更改FIFO注册器并发布VGA命令，可造成拒绝服务（QEMU进程崩溃）或获取敏感信息。
Severity: 低
Patch Name: QEMU vmsvga_fifo_read_raw函数拒绝服务漏洞的补丁
Patch Description:
QEMU是一款开源模拟器软件。
QEMU hw/display/vmware_vga.c/vmsvga_fifo_read_raw函数存在拒绝服务漏洞。本地OS用户通过更改FIFO注册器并发布VGA命令，可造成拒绝服务（QEMU进程崩溃）或获取敏感信息。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description:
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://bugzilla.redhat.com/show_bug.cgi?id=1336429 https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg05271.html http://www.openwall.com/lists/oss-security/2016/05/30/3
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1336429 https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg05271.html http://www.openwall.com/lists/oss-security/2016/05/30/3
| Name | QEMU QEMU |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2016-4454"
}
},
"description": "QEMU\u662f\u4e00\u6b3e\u5f00\u6e90\u6a21\u62df\u5668\u8f6f\u4ef6\u3002\r\n\r\nQEMU hw/display/vmware_vga.c/vmsvga_fifo_read_raw\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u672c\u5730OS\u7528\u6237\u901a\u8fc7\u66f4\u6539FIFO\u6ce8\u518c\u5668\u5e76\u53d1\u5e03VGA\u547d\u4ee4\uff0c\u53ef\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08QEMU\u8fdb\u7a0b\u5d29\u6e83\uff09\u6216\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002",
"discovererName": "Andrej Nem",
"formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1336429\r\nhttps://lists.gnu.org/archive/html/qemu-devel/2016-05/msg05271.html\r\nhttp://www.openwall.com/lists/oss-security/2016/05/30/3",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2016-03771",
"openTime": "2016-06-03",
"patchDescription": "QEMU\u662f\u4e00\u6b3e\u5f00\u6e90\u6a21\u62df\u5668\u8f6f\u4ef6\u3002\r\n\r\nQEMU hw/display/vmware_vga.c/vmsvga_fifo_read_raw\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u672c\u5730OS\u7528\u6237\u901a\u8fc7\u66f4\u6539FIFO\u6ce8\u518c\u5668\u5e76\u53d1\u5e03VGA\u547d\u4ee4\uff0c\u53ef\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08QEMU\u8fdb\u7a0b\u5d29\u6e83\uff09\u6216\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
"patchName": "QEMU vmsvga_fifo_read_raw\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "QEMU QEMU"
},
"referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1336429\r\nhttps://lists.gnu.org/archive/html/qemu-devel/2016-05/msg05271.html\r\nhttp://www.openwall.com/lists/oss-security/2016/05/30/3",
"serverity": "\u4f4e",
"submitTime": "2016-06-02",
"title": "QEMU vmsvga_fifo_read_raw\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.