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Privileges Required
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CVE-2012-4559

Disclosure Date: November 30, 2012
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Description

Multiple double free vulnerabilities in the (1) agent_sign_data function in agent.c, (2) channel_request function in channels.c, (3) ssh_userauth_pubkey function in auth.c, (4) sftp_parse_attr_3 function in sftp.c, and (5) try_publickey_from_file function in keyfiles.c in libssh before 0.5.3 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

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CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
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Attack Vector (AV):
Unknown
Attack Complexity (AC):
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Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Vendors

  • libssh

Products

  • libssh,
  • libssh 0.4.7,
  • libssh 0.4.8,
  • libssh 0.5.0,
  • libssh 0.5.1
Technical Analysis