Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 10:57

Modified

2025-05-20 10:02

Summary

mod_proxy_http NULL pointer dereference

Details

Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "apache",
        "purl": "pkg:bitnami/apache"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.4.41"
            },
            {
              "fixed": "2.4.47"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-13950"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service",
  "id": "BIT-apache-2020-13950",
  "modified": "2025-05-20T10:02:07.006Z",
  "published": "2024-03-06T10:57:17.183Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://httpd.apache.org/security/vulnerabilities_24.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/06/10/4"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rbe197409ae4a58b629fb792d1aed541ccbbf865121a80e1c5938d223%40%3Cannounce.httpd.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202107-38"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210702-0001/"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13950"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "mod_proxy_http NULL pointer dereference"
}

CVE-2020-13950 (GCVE-0-2020-13950)

Vulnerability from cvelistv5 – Published: 2021-06-10 07:10 – Updated: 2024-08-04 12:32

Title

mod_proxy_http NULL pointer dereference

Summary

Severity ?

No CVSS data available.

CWE

mod_proxy_http NULL pointer dereference

Assigner

apache

References

URL

Tags

	http://httpd.apache.org/security/vulnerabilities_…	x_refsource_MISC
	https://lists.apache.org/thread.html/re026d3da9d7…	x_refsource_MISC
	https://lists.apache.org/thread.html/rbe197409ae4…	mailing-listx_refsource_MLIST
	https://lists.apache.org/thread.html/r7f2b70b6216…	mailing-listx_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2021/06/10/4	mailing-listx_refsource_MLIST
	https://security.gentoo.org/glsa/202107-38	vendor-advisoryx_refsource_GENTOO
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2021070…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache HTTP Server	Affected: 2.4.46 Affected: 2.4.43 Affected: 2.4.41

Credits

Reported by Marc Stern (<marc.stern approach.be>)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:32:14.669Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_transferred"
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          },
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          },
          {
            "name": "[httpd-announce] 20210609 CVE-2020-13950: mod_proxy_http NULL pointer dereference",
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          },
          {
            "name": "[httpd-dev] 20210610 Re: svn commit: r1890598 - in /httpd/site/trunk/content/security/json: CVE-2019-17567.json CVE-2020-13938.json CVE-2020-13950.json CVE-2020-35452.json CVE-2021-26690.json CVE-2021-26691.json CVE-2021-30641.json CVE-2021-31618.json",
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          },
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            "name": "[oss-security] 20210609 CVE-2020-13950: Apache httpd: mod_proxy_http NULL pointer dereference",
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            "url": "https://security.netapp.com/advisory/ntap-20210702-0001/"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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          "vendor": "Apache Software Foundation",
          "versions": [
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      "metrics": [
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        },
        {
          "name": "[httpd-announce] 20210609 CVE-2020-13950: mod_proxy_http NULL pointer dereference",
          "tags": [
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          ],
          "url": "https://lists.apache.org/thread.html/rbe197409ae4a58b629fb792d1aed541ccbbf865121a80e1c5938d223%40%3Cannounce.httpd.apache.org%3E"
        },
        {
          "name": "[httpd-dev] 20210610 Re: svn commit: r1890598 - in /httpd/site/trunk/content/security/json: CVE-2019-17567.json CVE-2020-13938.json CVE-2020-13950.json CVE-2020-35452.json CVE-2021-26690.json CVE-2021-26691.json CVE-2021-30641.json CVE-2021-31618.json",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E"
        },
        {
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          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
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        },
        {
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          "tags": [
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          "url": "https://security.gentoo.org/glsa/202107-38"
        },
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          "tags": [
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            "x_refsource_FEDORA"
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/"
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        },
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          ],
          "url": "https://security.netapp.com/advisory/ntap-20210702-0001/"
        }
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            {
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}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2020-13950 (GCVE-0-2020-13950)

Tags

Sightings

Nomenclature