cnvd-2019-07064
Vulnerability from cnvd
Title: libarchive空指针解引用漏洞
Description:
Libarchive是一款开源、BSD许可下的C语言编程库，提供对各种不同归档格式的流式访问。
libarchive中的ACL解析器（libarchive/archive_acl.c的archive_acl_from_text_l()）存在空指针解引用漏洞，攻击者可通过诱使受害者打开特制归档文件利用该漏洞导致拒绝服务。
Severity: 中
Patch Name: libarchive空指针解引用漏洞的补丁
Patch Description:
Libarchive是一款开源、BSD许可下的C语言编程库，提供对各种不同归档格式的流式访问。
libarchive中的ACL解析器（libarchive/archive_acl.c的archive_acl_from_text_l()）存在空指针解引用漏洞，攻击者可通过诱使受害者打开特制归档文件利用该漏洞导致拒绝服务。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:
厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/libarchive/libarchive/pull/1105/files
Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-1000879
Impacted products
| Name | libarchive libarchive >=commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205(>=3.3.0) |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2018-1000879"
}
},
"description": "Libarchive\u662f\u4e00\u6b3e\u5f00\u6e90\u3001BSD\u8bb8\u53ef\u4e0b\u7684C\u8bed\u8a00\u7f16\u7a0b\u5e93\uff0c\u63d0\u4f9b\u5bf9\u5404\u79cd\u4e0d\u540c\u5f52\u6863\u683c\u5f0f\u7684\u6d41\u5f0f\u8bbf\u95ee\u3002\n\nlibarchive\u4e2d\u7684ACL\u89e3\u6790\u5668\uff08libarchive/archive_acl.c\u7684archive_acl_from_text_l()\uff09\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8bf1\u4f7f\u53d7\u5bb3\u8005\u6253\u5f00\u7279\u5236\u5f52\u6863\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
"discovererName": "Daniel Axtens",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/libarchive/libarchive/pull/1105/files",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2019-07064",
"openTime": "2019-03-14",
"patchDescription": "Libarchive\u662f\u4e00\u6b3e\u5f00\u6e90\u3001BSD\u8bb8\u53ef\u4e0b\u7684C\u8bed\u8a00\u7f16\u7a0b\u5e93\uff0c\u63d0\u4f9b\u5bf9\u5404\u79cd\u4e0d\u540c\u5f52\u6863\u683c\u5f0f\u7684\u6d41\u5f0f\u8bbf\u95ee\u3002\r\n\r\nlibarchive\u4e2d\u7684ACL\u89e3\u6790\u5668\uff08libarchive/archive_acl.c\u7684archive_acl_from_text_l()\uff09\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8bf1\u4f7f\u53d7\u5bb3\u8005\u6253\u5f00\u7279\u5236\u5f52\u6863\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "libarchive\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "libarchive libarchive \u003e=commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205(\u003e=3.3.0)"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000879",
"serverity": "\u4e2d",
"submitTime": "2018-12-21",
"title": "libarchive\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}
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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.
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