cnvd-2018-06513
Vulnerability from cnvd
Title: Qemu 'load_multiboot'函数任意代码执行漏洞
Description:
QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。
QEMU中的hw/i386/multiboot.c文件的'load_multiboot'函数存在安全漏洞。本地攻击者可借助大于mh_bss_end_addr的mh_load_end_addr值利用该漏洞在QEMU主机上执行任意代码。
Severity: 中
Patch Name: Qemu 'load_multiboot'函数任意代码执行漏洞的补丁
Patch Description:
QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。
QEMU中的hw/i386/multiboot.c文件的'load_multiboot'函数存在安全漏洞。本地攻击者可借助大于mh_bss_end_addr的mh_load_end_addr值利用该漏洞在QEMU主机上执行任意代码。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:
厂商已发布漏洞修复程序，请及时关注更新： https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.html
Reference: https://www.securityfocus.com/bid/103181/info
Impacted products
| Name | QEMU QEMU 0 |
|---|
{
"bids": {
"bid": {
"bidNumber": "103181"
}
},
"cves": {
"cve": {
"cveNumber": "CVE-2018-7550"
}
},
"description": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\nQEMU\u4e2d\u7684hw/i386/multiboot.c\u6587\u4ef6\u7684\u0027load_multiboot\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5927\u4e8emh_bss_end_addr\u7684mh_load_end_addr\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u5728QEMU\u4e3b\u673a\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
"discovererName": "Cyrille Chatras (Orange.com) and CERT-CC (Orange.com)",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.html",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2018-06513",
"openTime": "2018-03-27",
"patchDescription": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\nQEMU\u4e2d\u7684hw/i386/multiboot.c\u6587\u4ef6\u7684\u0027load_multiboot\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5927\u4e8emh_bss_end_addr\u7684mh_load_end_addr\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u5728QEMU\u4e3b\u673a\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\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 \u0027load_multiboot\u0027\u51fd\u6570\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "QEMU QEMU 0"
},
"referenceLink": "https://www.securityfocus.com/bid/103181/info",
"serverity": "\u4e2d",
"submitTime": "2018-03-01",
"title": "Qemu \u0027load_multiboot\u0027\u51fd\u6570\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}
Loading…
Loading…
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.
Loading…