usn-4754-5
Vulnerability from osv_ubuntu
Published
2022-02-08 12:17
Modified
2026-06-29 10:52
Summary
python2.7 vulnerability
Details

USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a subsequent update removed the fix for CVE-2021-3177. This update reinstates the security fix for CVE-2021-3177 in Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-3177",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "idle-python2.7",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          },
          {
            "binary_name": "libpython2.7",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          },
          {
            "binary_name": "libpython2.7-minimal",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          },
          {
            "binary_name": "libpython2.7-stdlib",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          },
          {
            "binary_name": "libpython2.7-testsuite",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          },
          {
            "binary_name": "python2.7",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          },
          {
            "binary_name": "python2.7-examples",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          },
          {
            "binary_name": "python2.7-minimal",
            "binary_version": "2.7.6-8ubuntu0.6+esm10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "python2.7",
        "purl": "pkg:deb/ubuntu/python2.7@2.7.6-8ubuntu0.6+esm10?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.6-8ubuntu0.6+esm10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.5-8ubuntu3",
        "2.7.5-8ubuntu4",
        "2.7.6-2",
        "2.7.6-2ubuntu1",
        "2.7.6-3",
        "2.7.6-3ubuntu1",
        "2.7.6-4",
        "2.7.6-4ubuntu1",
        "2.7.6-5",
        "2.7.6-7",
        "2.7.6-8",
        "2.7.6-8ubuntu0.2",
        "2.7.6-8ubuntu0.3",
        "2.7.6-8ubuntu0.4",
        "2.7.6-8ubuntu0.5",
        "2.7.6-8ubuntu0.6+esm2",
        "2.7.6-8ubuntu0.6+esm3",
        "2.7.6-8ubuntu0.6+esm5",
        "2.7.6-8ubuntu0.6+esm6",
        "2.7.6-8ubuntu0.6+esm7",
        "2.7.6-8ubuntu0.6+esm8",
        "2.7.6-8ubuntu0.6+esm9"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a\nsubsequent update removed the fix for CVE-2021-3177. This update reinstates\nthe security fix for CVE-2021-3177 in Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that Python incorrectly handled certain inputs.\n An attacker could possibly use this issue to execute arbitrary code\n or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)\n",
  "id": "USN-4754-5",
  "modified": "2026-06-29T10:52:48Z",
  "published": "2022-02-08T12:17:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4754-5"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3177"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "python2.7 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-3177"
  ]
}



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