Vulnerability-Lookup

CNVD-2022-86393

Vulnerability from cnvd - Published: 2022-12-06

Title

PostgreSQL JDBC Drive信息泄露漏洞

Description

PostgreSQL JDBC Driver是一个用Pure Java(Type 4)编写的开源JDBC驱动程序，用于PostgreSQL本地网络协议中进行通信。 PostgreSQL JDBC Driver存在信息泄露漏洞。该漏洞源于输入流大于2k，则使用 PreparedStatement.setText(int，InputStream)或 PreparedStatemet.setBytea(int，InputStream)的预处理语句将创建一个临时文件。攻击者可利用漏洞获取敏感信息。

Severity

中

Patch Name

PostgreSQL JDBC Drive信息泄露漏洞的补丁

Patch Description

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/pgjdbc/pgjdbc/commit/9008dc9aade6dbfe4efafcd6872ebc55f4699cf5

Reference

https://github.com/pgjdbc/pgjdbc/commit/9008dc9aade6dbfe4efafcd6872ebc55f4699cf5

Impacted products

Name
['Postgresql postgresql_jdbc_driver >=42.2.0，<42.2.27', 'Postgresql postgresql_jdbc_driver >=42.3.0，<42.3.8', 'Postgresql postgresql_jdbc_driver >=42.4.0，<42.4.3', 'Postgresql postgresql_jdbc_driver 42.5.0', 'Postgresql postgresql_jdbc_driver 42.5.0 rc1']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-41946",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-41946"
    }
  },
  "description": "PostgreSQL JDBC Driver\u662f\u4e00\u4e2a\u7528Pure Java(Type 4)\u7f16\u5199\u7684\u5f00\u6e90JDBC\u9a71\u52a8\u7a0b\u5e8f\uff0c\u7528\u4e8ePostgreSQL\u672c\u5730\u7f51\u7edc\u534f\u8bae\u4e2d\u8fdb\u884c\u901a\u4fe1\u3002\n\nPostgreSQL JDBC Driver\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f93\u5165\u6d41\u5927\u4e8e2k\uff0c\u5219\u4f7f\u7528 PreparedStatement.setText(int\uff0cInputStream)\u6216 PreparedStatemet.setBytea(int\uff0cInputStream)\u7684\u9884\u5904\u7406\u8bed\u53e5\u5c06\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\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/pgjdbc/pgjdbc/commit/9008dc9aade6dbfe4efafcd6872ebc55f4699cf5",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-86393",
  "openTime": "2022-12-06",
  "patchDescription": "PostgreSQL JDBC Driver\u662f\u4e00\u4e2a\u7528Pure Java(Type 4)\u7f16\u5199\u7684\u5f00\u6e90JDBC\u9a71\u52a8\u7a0b\u5e8f\uff0c\u7528\u4e8ePostgreSQL\u672c\u5730\u7f51\u7edc\u534f\u8bae\u4e2d\u8fdb\u884c\u901a\u4fe1\u3002\r\n\r\nPostgreSQL JDBC Driver\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f93\u5165\u6d41\u5927\u4e8e2k\uff0c\u5219\u4f7f\u7528 PreparedStatement.setText(int\uff0cInputStream)\u6216 PreparedStatemet.setBytea(int\uff0cInputStream)\u7684\u9884\u5904\u7406\u8bed\u53e5\u5c06\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\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": "PostgreSQL JDBC Drive\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Postgresql postgresql_jdbc_driver \u003e=42.2.0\uff0c\u003c42.2.27",
      "Postgresql postgresql_jdbc_driver \u003e=42.3.0\uff0c\u003c42.3.8",
      "Postgresql postgresql_jdbc_driver \u003e=42.4.0\uff0c\u003c42.4.3",
      "Postgresql postgresql_jdbc_driver 42.5.0",
      "Postgresql postgresql_jdbc_driver 42.5.0 rc1"
    ]
  },
  "referenceLink": "https://github.com/pgjdbc/pgjdbc/commit/9008dc9aade6dbfe4efafcd6872ebc55f4699cf5",
  "serverity": "\u4e2d",
  "submitTime": "2022-11-25",
  "title": "PostgreSQL JDBC Drive\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2022-41946 (GCVE-0-2022-41946)

Vulnerability from cvelistv5 – Published: 2022-11-23 00:00 – Updated: 2025-11-03 21:46

Title

TemporaryFolder on unix-like systems does not limit access to created files in pgjdbc

Summary

pgjdbc is an open source postgresql JDBC Driver. In affected versions a prepared statement using either `PreparedStatement.setText(int, InputStream)` or `PreparedStatemet.setBytea(int, InputStream)` will create a temporary file if the InputStream is larger than 2k. This will create a temporary file which is readable by other users on Unix like systems, but not MacOS. On Unix like systems, the system's temporary directory is shared between all users on that system. Because of this, when files and directories are written into this directory they are, by default, readable by other users on that same system. This vulnerability does not allow other users to overwrite the contents of these directories or files. This is purely an information disclosure vulnerability. Because certain JDK file system APIs were only added in JDK 1.7, this this fix is dependent upon the version of the JDK you are using. Java 1.7 and higher users: this vulnerability is fixed in 4.5.0. Java 1.6 and lower users: no patch is available. If you are unable to patch, or are stuck running on Java 1.6, specifying the java.io.tmpdir system environment variable to a directory that is exclusively owned by the executing user will mitigate this vulnerability.

Severity

4.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-377 - Insecure Temporary File

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7639 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/pgjdbc/pgjdbc/security/advisor…
https://github.com/pgjdbc/pgjdbc/commit/9008dc9aa…
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.netapp.com/advisory/ntap-2024032…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
pgjdbc	pgjdbc	Affected: >= 42.2.0, < 42.2.27 Affected: > 42.3.0, < 42.3.8 Affected: >= 42.4.0, < 42.4.3 Affected: >= 42.5.0, < 42.5.1

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JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T21:46:35.067Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-562r-vg33-8x8h"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/pgjdbc/pgjdbc/commit/9008dc9aade6dbfe4efafcd6872ebc55f4699cf5"
          },
          {
            "name": "[debian-lts-announce] 20221202 [SECURITY] [DLA 3218-1] libpgjava security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00003.html"
          },
          {
            "name": "FEDORA-2023-42d6ba9bd6",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25TY2L3RMVNOC7VAHJEAO7PTT6M6JJAD/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240329-0003/"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00017.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "pgjdbc",
          "vendor": "pgjdbc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 42.2.0, \u003c 42.2.27"
            },
            {
              "status": "affected",
              "version": "\u003e 42.3.0, \u003c 42.3.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 42.4.0, \u003c 42.4.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 42.5.0, \u003c 42.5.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "pgjdbc is an open source postgresql JDBC Driver. In affected versions a prepared statement using either `PreparedStatement.setText(int, InputStream)` or `PreparedStatemet.setBytea(int, InputStream)` will create a temporary file if the InputStream is larger than 2k. This will create a temporary file which is readable by other users on Unix like systems, but not MacOS. On Unix like systems, the system\u0027s temporary directory is shared between all users on that system. Because of this, when files and directories are written into this directory they are, by default, readable by other users on that same system. This vulnerability does not allow other users to overwrite the contents of these directories or files. This is purely an information disclosure vulnerability. Because certain JDK file system APIs were only added in JDK 1.7, this this fix is dependent upon the version of the JDK you are using. Java 1.7 and higher users: this vulnerability is fixed in 4.5.0. Java 1.6 and lower users: no patch is available. If you are unable to patch, or are stuck running on Java 1.6, specifying the java.io.tmpdir system environment variable to a directory that is exclusively owned by the executing user will mitigate this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-377",
              "description": "CWE-377: Insecure Temporary File",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-03-29T13:06:09.090Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-562r-vg33-8x8h"
        },
        {
          "url": "https://github.com/pgjdbc/pgjdbc/commit/9008dc9aade6dbfe4efafcd6872ebc55f4699cf5"
        },
        {
          "name": "[debian-lts-announce] 20221202 [SECURITY] [DLA 3218-1] libpgjava security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00003.html"
        },
        {
          "name": "FEDORA-2023-42d6ba9bd6",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25TY2L3RMVNOC7VAHJEAO7PTT6M6JJAD/"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240329-0003/"
        }
      ],
      "source": {
        "advisory": "GHSA-562r-vg33-8x8h",
        "discovery": "UNKNOWN"
      },
      "title": "TemporaryFolder on unix-like systems does not limit access to created files in pgjdbc"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-41946",
    "datePublished": "2022-11-23T00:00:00.000Z",
    "dateReserved": "2022-09-30T00:00:00.000Z",
    "dateUpdated": "2025-11-03T21:46:35.067Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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