Vulnerability-Lookup

BREW-TEXLIVE-CVE-2011-0633 (CVE-2011-0633)

Vulnerability from osv_homebrew – Published: 2026-08-13 10:23 – Updated: 2026-08-13 10:23 – Source website

Details

The Net::HTTPS module in libwww-perl (LWP) before 6.00, as used in WWW::Mechanize, LWP::UserAgent, and other products, when running in environments that do not set the If-SSL-Cert-Subject header, does not enable full validation of SSL certificates by default, which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated. NOTE: it could be argued that this is a design limitation of the Net::HTTPS API, and separate implementations should be independently assigned CVE identifiers for not working around this limitation. However, because this API was modified within LWP, a single CVE identifier has been assigned.

References

URL

Type

	http://vttynotes.blogspot.com/2010/12/man-in-midd…	ARTICLE
	http://vttynotes.blogspot.com/2011/03/quick-note-…	ARTICLE
	http://cpansearch.perl.org/src/GAAS/libwww-perl-6…	WEB

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "LWP",
        "resource_purl": "pkg:cpan/OALDERS/libwww-perl@6.81",
        "upstream_fixed_in": "6.00"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "texlive",
        "purl": "pkg:brew/texlive"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20260301"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "medium",
    "source": "matched",
    "strategy": "cpansa",
    "upstream_evidence": [
      {
        "ecosystem": "CPAN",
        "key": "pkg:cpan/OALDERS/libwww-perl@6.81",
        "name": "libwww-perl",
        "resource": "LWP",
        "strategy": "cpansa",
        "subject_version": "6.81"
      }
    ]
  },
  "details": "The Net::HTTPS module in libwww-perl (LWP) before 6.00, as used in WWW::Mechanize, LWP::UserAgent, and other products, when running in environments that do not set the If-SSL-Cert-Subject header, does not enable full validation of SSL certificates by default, which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated.  NOTE: it could be argued that this is a design limitation of the Net::HTTPS API, and separate implementations should be independently assigned CVE identifiers for not working around this limitation. However, because this API was modified within LWP, a single CVE identifier has been assigned.",
  "id": "BREW-texlive-CVE-2011-0633",
  "modified": "2026-08-13T10:23:12Z",
  "published": "2026-08-13T10:23:12Z",
  "references": [
    {
      "type": "ARTICLE",
      "url": "http://vttynotes.blogspot.com/2010/12/man-in-middle-fun-with-perl-lwp.html"
    },
    {
      "type": "ARTICLE",
      "url": "http://vttynotes.blogspot.com/2011/03/quick-note-on-lwp-and-perl-security-cve.html"
    },
    {
      "type": "WEB",
      "url": "http://cpansearch.perl.org/src/GAAS/libwww-perl-6.02/Changes"
    }
  ],
  "schema_version": "1.7.3",
  "upstream": [
    "CVE-2011-0633"
  ]
}

CVE-2011-0633 (GCVE-0-2011-0633)

Vulnerability from cvelistv5 – Published: 2011-05-13 22:00 – Updated: 2024-09-16 17:53

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

3 references

URL	Tags
http://vttynotes.blogspot.com/2010/12/man-in-midd…	x_refsource_MISC
http://cpansearch.perl.org/src/GAAS/libwww-perl-6…	x_refsource_MISC
http://vttynotes.blogspot.com/2011/03/quick-note-…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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          },
          {
            "tags": [
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            ],
            "url": "http://cpansearch.perl.org/src/GAAS/libwww-perl-6.02/Changes"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://vttynotes.blogspot.com/2011/03/quick-note-on-lwp-and-perl-security-cve.html"
          }
        ],
        "title": "CVE Program Container"
      }
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    "cna": {
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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.

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.

Action not permitted

BREW-TEXLIVE-CVE-2011-0633 (CVE-2011-0633)

CVE-2011-0633 (GCVE-0-2011-0633)

Tags

Sightings

Nomenclature

Related by attack behaviour