Gentoo FoundationMGASA-2018-0429Updated python-cryptography packages fix security vulnerability
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
55.3%
The python-cryptography and python-cryptography-vectors packages have been updated to version 2.3.1 and fixes the following security issue: The finalize_with_tag API did not enforce a minimum tag length. If a user did not validate the input length prior to passing it to finalize_with_tag an attacker could craft an invalid payload with a shortened tag (e.g. 1 byte) such that they would have a 1 in 256 chance of passing the MAC check. GCM tag forgeries can cause key leakage (CVE-2018-10903).
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Mageia | 6 | noarch | python-cryptography | < 2.3.1-1 | python-cryptography-2.3.1-1.mga6 |
| Mageia | 6 | noarch | python-cryptography-vectors | < 2.3.1-1 | python-cryptography-vectors-2.3.1-1.mga6 |
| Mageia | 6 | noarch | python-asn1crypto | < 0.22.0-1.1 | python-asn1crypto-0.22.0-1.1.mga6 |
| Mageia | 6 | noarch | python-cffi | < 1.7.0-1 | python-cffi-1.7.0-1.mga6 |
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
55.3%