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cve[email protected]CVE-2012-0955
HistoryDec 02, 2020 - 1:15 a.m.

CVE-2012-0955

2020-12-0201:15:11
CWE-295
web.nvd.nist.gov
35
software-properties
person-in-the-middle attack
vulnerability
tls certificate validation
python2
python3
cve-2012-0955

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

0.001 Low

EPSS

Percentile

49.2%

software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn’t check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.

Affected configurations

NVD
Node
canonicalsoftware-propertiesRange<0.92

CNA Affected

[
  {
    "product": "software-properties",
    "vendor": "Canonical",
    "versions": [
      {
        "lessThan": "0.92",
        "status": "affected",
        "version": "0.92",
        "versionType": "custom"
      }
    ]
  }
]

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

0.001 Low

EPSS

Percentile

49.2%