MGASA-2020-0364 - Updated python-rsa packages fix security vulnerability

Publication date: 06 Sep 2020
URL: https://advisories.mageia.org/MGASA-2020-0364.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2020-13757

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). (CVE-2020-13757)

References:
- https://bugs.mageia.org/show_bug.cgi?id=26954
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13757

SRPMS:
- 7/core/python-rsa-4.0-1.1.mga7

Mageia 2020-0364: python-rsa security update

Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext

Summary

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). (CVE-2020-13757)

References

- https://bugs.mageia.org/show_bug.cgi?id=26954

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13757

Resolution

MGASA-2020-0364 - Updated python-rsa packages fix security vulnerability

SRPMS

- 7/core/python-rsa-4.0-1.1.mga7

Severity
Publication date: 06 Sep 2020
URL: https://advisories.mageia.org/MGASA-2020-0364.html
Type: security
CVE: CVE-2020-13757

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