Moderate severityNVD Advisory· Published May 20, 2014· Updated Jun 16, 2026
CVE-2013-4347
CVE-2013-4347
Description
The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to generate nonces, which makes it easier for remote attackers to guess the nonce via a brute force attack.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
oauth2PyPI | < 1.9rc1 | 1.9rc1 |
Affected products
2- cpe:2.3:a:urbanairship:python-oauth2:-:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
12- github.com/advisories/GHSA-rv8h-p43r-4x5rghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2013-4347ghsaADVISORY
- www.openwall.com/lists/oss-security/2013/09/12/7nvdWEB
- www.securityfocus.com/bid/62388nvdWEB
- access.redhat.com/errata/RHSA-2015:1591ghsaWEB
- access.redhat.com/errata/RHSA-2015:1592ghsaWEB
- access.redhat.com/security/cve/CVE-2013-4347ghsaWEB
- bugzilla.redhat.com/show_bug.cgighsaWEB
- github.com/joestump/python-oauth2/commit/82dd2cdd4954cd7b8983d5d64c0dfd9072bf4650ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/oauth2/PYSEC-2014-86.yamlghsaWEB
- github.com/simplegeo/python-oauth2/issues/9nvdWEB
- github.com/simplegeo/python-oauth2/pull/146nvdWEB
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