CVE-2020-13757

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Source
https://cve.org/CVERecord?id=CVE-2020-13757
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-13757.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-13757
Aliases
Downstream
Related
Published
2020-06-01T19:15:10.067Z
Modified
2026-05-18T05:50:53.539857720Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*"
            ],
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "14.04"
                }
            ],
            "vendor_product": "canonical:ubuntu_linux"
        },
        {
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
            ],
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "31"
                },
                {
                    "last_affected": "32"
                }
            ],
            "vendor_product": "fedoraproject:fedora"
        }
    ]
}
References

Affected packages

Git / github.com/sybrenstuvel/python-rsa

Affected ranges

Type
GIT
Repo
https://github.com/sybrenstuvel/python-rsa
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c6731b1dda461676b998a18004b23a9879378041
Database specific 
{
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.1"
        }
    ],
    "cpe": "cpe:2.3:a:python-rsa_project:python-rsa:*:*:*:*:*:*:*:*"
}

Affected versions

version-1.*
version-1.1
version-1.2
version-1.3
version-1.3.1
version-1.3.2
version-1.3.3
version-2.*
version-2.0
version-3.*
version-3.0
version-3.0.1
version-3.1
version-3.1.1
version-3.1.2
version-3.1.3
version-3.1.4
version-3.2
version-3.2.1
version-3.2.2
version-3.2.3
version-3.3
version-3.4
version-4.*
version-4.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-13757.json"