cnvd - cnvd-2022-08917

cnvd-2022-08917

Vulnerability from cnvd

Title: Flatpak路径遍历漏洞

Description:

Flatpak是一套用于Linux桌面应用计算机环境的应用程序虚拟化系统。

Flatpak存在安全漏洞，攻击者可利用该漏洞通过恶意应用程序替换appstream util二进制文件，并可能执行其他恶意操作。

Severity: 中

Patch Name: Flatpak路径遍历漏洞的补丁

Patch Description:

Flatpak是一套用于Linux桌面应用计算机环境的应用程序虚拟化系统。

Flatpak存在安全漏洞，攻击者可利用该漏洞通过恶意应用程序替换appstream util二进制文件，并可能执行其他恶意操作。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx

Reference: https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa

Impacted products

Name
['Flatpak Flatpak <1.10.7', 'Flatpak Flatpak >=1.11.1，<1.12.4', 'Flatpak Flatpak <1.2.2']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-21682"
    }
  },
  "description": "Flatpak\u662f\u4e00\u5957\u7528\u4e8eLinux\u684c\u9762\u5e94\u7528\u8ba1\u7b97\u673a\u73af\u5883\u7684\u5e94\u7528\u7a0b\u5e8f\u865a\u62df\u5316\u7cfb\u7edf\u3002\n\nFlatpak\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u66ff\u6362appstream util\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u5e76\u53ef\u80fd\u6267\u884c\u5176\u4ed6\u6076\u610f\u64cd\u4f5c\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-08917",
  "openTime": "2022-02-09",
  "patchDescription": "Flatpak\u662f\u4e00\u5957\u7528\u4e8eLinux\u684c\u9762\u5e94\u7528\u8ba1\u7b97\u673a\u73af\u5883\u7684\u5e94\u7528\u7a0b\u5e8f\u865a\u62df\u5316\u7cfb\u7edf\u3002\r\n\r\nFlatpak\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u66ff\u6362appstream util\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u5e76\u53ef\u80fd\u6267\u884c\u5176\u4ed6\u6076\u610f\u64cd\u4f5c\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": "Flatpak\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Flatpak Flatpak \u003c1.10.7",
      "Flatpak Flatpak \u003e=1.11.1\uff0c\u003c1.12.4",
      "Flatpak Flatpak \u003c1.2.2"
    ]
  },
  "referenceLink": "https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa",
  "serverity": "\u4e2d",
  "submitTime": "2022-01-17",
  "title": "Flatpak\u8def\u5f84\u904d\u5386\u6f0f\u6d1e"
}

CVE-2022-21682 (GCVE-0-2022-21682)

Vulnerability from cvelistv5

Published

2022-01-13 00:00

Modified

2024-08-03 02:46

Severity ?

7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Summary

Flatpak is a Linux application sandboxing and distribution framework. A path traversal vulnerability affects versions of Flatpak prior to 1.12.3 and 1.10.6. flatpak-builder applies `finish-args` last in the build. At this point the build directory will have the full access that is specified in the manifest, so running `flatpak build` against it will gain those permissions. Normally this will not be done, so this is not problem. However, if `--mirror-screenshots-url` is specified, then flatpak-builder will launch `flatpak build --nofilesystem=host appstream-utils mirror-screenshots` after finalization, which can lead to issues even with the `--nofilesystem=host` protection. In normal use, the only issue is that these empty directories can be created wherever the user has write permissions. However, a malicious application could replace the `appstream-util` binary and potentially do something more hostile. This has been resolved in Flatpak 1.12.3 and 1.10.6 by changing the behaviour of `--nofilesystem=home` and `--nofilesystem=host`.

References

▼	URL	Tags
	https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx
	https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a
	https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/	vendor-advisory
	https://www.debian.org/security/2022/dsa-5049	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/	vendor-advisory
	https://security.gentoo.org/glsa/202312-12	vendor-advisory

Impacted products

	Vendor	Product	Version
	flatpak	flatpak	Version: >= 1.11.0, < 1.12.3 Version: < 1.10.6

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T02:46:39.409Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          "value": "Flatpak is a Linux application sandboxing and distribution framework. A path traversal vulnerability affects versions of Flatpak prior to 1.12.3 and 1.10.6. flatpak-builder applies `finish-args` last in the build. At this point the build directory will have the full access that is specified in the manifest, so running `flatpak build` against it will gain those permissions. Normally this will not be done, so this is not problem. However, if `--mirror-screenshots-url` is specified, then flatpak-builder will launch `flatpak build --nofilesystem=host appstream-utils mirror-screenshots` after finalization, which can lead to issues even with the `--nofilesystem=host` protection. In normal use, the only issue is that these empty directories can be created wherever the user has write permissions. However, a malicious application could replace the `appstream-util` binary and potentially do something more hostile. This has been resolved in Flatpak 1.12.3 and 1.10.6 by changing the behaviour of `--nofilesystem=home` and `--nofilesystem=host`."
        }
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
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          "tags": [
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        },
        {
          "name": "DSA-5049",
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        },
        {
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      "source": {
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        "discovery": "UNKNOWN"
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    "dateReserved": "2021-11-16T00:00:00",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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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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