USN-8369-2 (UBUNTU-CVE-2023-41081)

Vulnerability from osv_ubuntu – Published: 2026-07-23 00:33 – Updated: 2026-07-23 00:33 – Source website
VLAI
Summary
libapache-mod-jk regression
Details

USN-8369-1 fixed a vulnerability in mod_jk. It was discovered that for Ubuntu 18.04 LTS, during the update preparation phase, a previous fix for CVE-2023-41081 was incorrectly dropped. This update reintroduces the fix for CVE-2023-41081.

We apologize for the inconvenience.

Original advisory details:

It was discovered that Apache Tomcat Connectors used incorrect default permissions for shared memory on Unix-like systems. A local attacker could possibly use this issue to view or modify mod_jk configuration data in shared memory, resulting in sensitive information exposure or a denial of service.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-41081",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libapache2-mod-jk",
            "binary_version": "1:1.2.41-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libapache-mod-jk",
        "purl": "pkg:deb/ubuntu/libapache-mod-jk@1:1.2.41-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.2.41-1ubuntu0.1~esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.2.40+svn150520-1",
        "1:1.2.41-1",
        "1:1.2.41-1ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8369-1 fixed a vulnerability in mod_jk. It was discovered that for\nUbuntu 18.04 LTS, during the update preparation phase, a previous  fix for\nCVE-2023-41081 was incorrectly dropped. This update  reintroduces the fix\nfor CVE-2023-41081.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that Apache Tomcat Connectors used incorrect default\n permissions for shared memory on Unix-like systems. A local attacker could\n possibly use this issue to view or modify mod_jk configuration data in\n shared memory, resulting in sensitive information exposure or a denial of\n service.",
  "id": "USN-8369-2",
  "modified": "2026-07-23T00:33:14Z",
  "published": "2026-07-23T00:33:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8369-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-41081"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2161580"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libapache-mod-jk regression",
  "upstream": [
    "UBUNTU-CVE-2023-41081"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



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.