apt apt-get gpgv security bypass

apt-aptget-gpgv-security-bypass (50086) The risk level is classified as MediumMedium Risk

Description:

apt could allow a remote attacker to bypass security restrictions. apt-get does not check for the correct error code from gpgv. An attacker could exploit this vulnerability using a key that has been revoked or expired to bypass validity checks and install malicious repositories.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Bypass Security

Remedy:

Upgrade to the latest version of apt (0.7.21 or later), available from the Debian Web site. See References.

References:

  • Debian Bug report logs - #433091: ignores expiry of archive keys.
  • Debian Web site: Debian Changelog apt (0.7.21).
  • BID-34630: Debian apt Repository Signature Verification Vulnerability
  • CVE-2009-1358: apt-get in apt before 0.7.21 does not check for the correct error code from gpgv, which causes apt to treat a repository as valid even when it has been signed with a key that has been revoked or expired, which might allow remote attackers to trick apt into installing malicious repositories.
  • DSA-1779: apt -- several vulnerabilities
  • OSVDB ID: 56289: apt apt-get gpgv Package Signature Verification Weakness
  • SA34829: apt Package Signature Verification Security Bypass

Platforms Affected:

  • Debian Apt 0.0.1
  • Debian Apt 0.0.10
  • Debian Apt 0.0.11
  • Debian Apt 0.0.12
  • Debian Apt 0.0.13
  • Debian Apt 0.0.13-Bo1
  • Debian Apt 0.0.14
  • Debian Apt 0.0.15
  • Debian Apt 0.0.15-0.1bo
  • Debian Apt 0.0.15-0.2bo
  • Debian Apt 0.0.16-1
  • Debian Apt 0.0.17-1
  • Debian Apt 0.0.2
  • Debian Apt 0.0.3
  • Debian Apt 0.0.4
  • Debian Apt 0.0.5
  • Debian Apt 0.0.6
  • Debian Apt 0.0.7
  • Debian Apt 0.0.8
  • Debian Apt 0.0.9
  • Debian Apt 0.1
  • Debian Apt 0.1.1
  • Debian Apt 0.1.3
  • Debian Apt 0.1.5
  • Debian Apt 0.1.6
  • Debian Apt 0.1.7
  • Debian Apt 0.1.9
  • Debian Apt 0.3.0
  • Debian Apt 0.3.1
  • Debian Apt 0.3.11
  • Debian Apt 0.3.12
  • Debian Apt 0.3.13
  • Debian Apt 0.3.14
  • Debian Apt 0.3.15
  • Debian Apt 0.3.16
  • Debian Apt 0.3.17
  • Debian Apt 0.3.18
  • Debian Apt 0.3.19
  • Debian Apt 0.3.2
  • Debian Apt 0.3.3
  • Debian Apt 0.3.4
  • Debian Apt 0.3.6
  • Debian Apt 0.3.7
  • Debian Apt 0.3.9
  • Debian Apt 0.5.0
  • Debian Apt 0.5.1
  • Debian Apt 0.5.10
  • Debian Apt 0.5.11
  • Debian Apt 0.5.12
  • Debian Apt 0.5.13
  • Debian Apt 0.5.14
  • Debian Apt 0.5.15
  • Debian Apt 0.5.16
  • Debian Apt 0.5.17
  • Debian Apt 0.5.18
  • Debian Apt 0.5.19
  • Debian Apt 0.5.2
  • Debian Apt 0.5.20
  • Debian Apt 0.5.21
  • Debian Apt 0.5.22
  • Debian Apt 0.5.23
  • Debian Apt 0.5.24
  • Debian Apt 0.5.25
  • Debian Apt 0.5.26
  • Debian Apt 0.5.27
  • Debian Apt 0.5.28
  • Debian Apt 0.5.29
  • Debian Apt 0.5.3
  • Debian Apt 0.5.30 Ubuntu2
  • Debian Apt 0.5.30
  • Debian Apt 0.5.30 Ubuntu1
  • Debian Apt 0.5.31
  • Debian Apt 0.5.32
  • Debian Apt 0.5.4
  • Debian Apt 0.5.5
  • Debian Apt 0.5.5.1
  • Debian Apt 0.5.6
  • Debian Apt 0.5.7
  • Debian Apt 0.5.8
  • Debian Apt 0.5.9
  • Debian Apt 0.6.0
  • Debian Apt 0.6.1
  • Debian Apt 0.6.10
  • Debian Apt 0.6.11
  • Debian Apt 0.6.12
  • Debian Apt 0.6.13
  • Debian Apt 0.6.14
  • Debian Apt 0.6.15
  • Debian Apt 0.6.16
  • Debian Apt 0.6.17
  • Debian Apt 0.6.18
  • Debian Apt 0.6.19
  • Debian Apt 0.6.2
  • Debian Apt 0.6.20
  • Debian Apt 0.6.21
  • Debian Apt 0.6.22
  • Debian Apt 0.6.23
  • Debian Apt 0.6.24
  • Debian Apt 0.6.25
  • Debian Apt 0.6.27
  • Debian Apt 0.6.27 Ubuntu1
  • Debian Apt 0.6.27 Ubuntu4
  • Debian Apt 0.6.27 Ubuntu2
  • Debian Apt 0.6.27 Ubuntu3
  • Debian Apt 0.6.28
  • Debian Apt 0.6.29
  • Debian Apt 0.6.3
  • Debian Apt 0.6.30
  • Debian Apt 0.6.31
  • Debian Apt 0.6.32
  • Debian Apt 0.6.33
  • Debian Apt 0.6.34
  • Debian Apt 0.6.35
  • Debian Apt 0.6.36 Ubuntu1
  • Debian Apt 0.6.36
  • Debian Apt 0.6.37
  • Debian Apt 0.6.38
  • Debian Apt 0.6.39
  • Debian Apt 0.6.4
  • Debian Apt 0.6.40
  • Debian Apt 0.6.40.1
  • Debian Apt 0.6.41
  • Debian Apt 0.6.42
  • Debian Apt 0.6.42.1
  • Debian Apt 0.6.42.2
  • Debian Apt 0.6.42.3
  • Debian Apt 0.6.43
  • Debian Apt 0.6.43.1
  • Debian Apt 0.6.43.2
  • Debian Apt 0.6.43.3
  • Debian Apt 0.6.44
  • Debian Apt 0.6.44.1
  • Debian Apt 0.6.44.1-0.1
  • Debian Apt 0.6.44.2
  • Debian Apt 0.6.44.2 Exp1
  • Debian Apt 0.6.45
  • Debian Apt 0.6.46
  • Debian Apt 0.6.46.1
  • Debian Apt 0.6.46.2
  • Debian Apt 0.6.46.3
  • Debian Apt 0.6.46.3-0.1
  • Debian Apt 0.6.46.3-0.2
  • Debian Apt 0.6.46.4-0.1
  • Debian Apt 0.6.5
  • Debian Apt 0.6.6
  • Debian Apt 0.6.7
  • Debian Apt 0.6.8
  • Debian Apt 0.6.9
  • Debian Apt 0.7.0
  • Debian Apt 0.7.1
  • Debian Apt 0.7.10
  • Debian Apt 0.7.11
  • Debian Apt 0.7.12
  • Debian Apt 0.7.13
  • Debian Apt 0.7.14
  • Debian Apt 0.7.15 Exp3
  • Debian Apt 0.7.15 Exp1
  • Debian Apt 0.7.15 Exp2
  • Debian Apt 0.7.15
  • Debian Apt 0.7.16
  • Debian Apt 0.7.17 Exp1
  • Debian Apt 0.7.17 Exp3
  • Debian Apt 0.7.17 Exp4
  • Debian Apt 0.7.17 Exp2
  • Debian Apt 0.7.17
  • Debian Apt 0.7.18
  • Debian Apt 0.7.19
  • Debian Apt 0.7.2
  • Debian Apt 0.7.2-0.1
  • Debian Apt 0.7.20
  • Debian Apt 0.7.20.1
  • Debian Apt 0.7.20.2
  • Debian Apt 0.7.21
  • Debian Apt 0.7.3
  • Debian Apt 0.7.4
  • Debian Apt 0.7.5
  • Debian Apt 0.7.6
  • Debian Apt 0.7.7
  • Debian Apt 0.7.8
  • Debian Apt 0.7.9
  • Debian Debian Linux 4.0
  • Debian Debian Linux 5.0

Reported:

Apr 14, 2009

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