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CVE-2010-3493 (GCVE-0-2010-3493)

Vulnerability from cvelistv5 – Published: 2010-10-19 19:00 – Updated: 2024-08-07 03:11
VLAI
Summary
Multiple race conditions in smtpd.py in the smtpd module in Python 2.6, 2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, or the getpeername function having an ENOTCONN error, a related issue to CVE-2010-3492.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
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http://www.openwall.com/lists/oss-security/2010/09/11/2 mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=632200 x_refsource_CONFIRM
http://secunia.com/advisories/43068 third-party-advisoryx_refsource_SECUNIA
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http://www.vupen.com/english/advisories/2011/0212 vdb-entryx_refsource_VUPEN
http://secunia.com/advisories/51040 third-party-advisoryx_refsource_SECUNIA
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://secunia.com/advisories/50858 third-party-advisoryx_refsource_SECUNIA
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://bugs.python.org/issue9129 x_refsource_CONFIRM
http://www.securityfocus.com/bid/44533 vdb-entryx_refsource_BID
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.openwall.com/lists/oss-security/2010/09/24/3 mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-1596-1 vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2010/09/22/3 mailing-listx_refsource_MLIST
http://bugs.python.org/issue6706 x_refsource_MISC
http://www.openwall.com/lists/oss-security/2010/09/09/6 mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-1613-2 vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://svn.python.org/view?view=rev&revision=84289 x_refsource_CONFIRM
http://secunia.com/advisories/51024 third-party-advisoryx_refsource_SECUNIA
http://www.ubuntu.com/usn/USN-1613-1 vendor-advisoryx_refsource_UBUNTU
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
Date Public
2010-09-09 00:00
Show details on NVD website
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            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-01-28T23:03:22+00:00",
      "cve": "CVE-2010-3493",
      "id": "CVE-2010-3493",
      "initial_release_date": "2010-06-30T00:00:00+00:00",
      "product_status:fixed": "492",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Python: SMTP proxy RFC 2821 module DoS (uncaught exception) (Issue #9129)",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2010/cve-2010-3493.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-02T23:32:48Z",
      "cve": "CVE-2010-3493",
      "id": "CVE-2010-3493",
      "initial_release_date": "2023-02-15T05:57:11Z",
      "product_status:known_affected": "15",
      "product_status:known_not_affected": "1",
      "product_status:recommended": "67",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2010-3493",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2010-3493.json",
      "version": "10"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.


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.