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  2. CVE-2012-4561
ID CVE-2012-4561
Summary The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free "an invalid pointer on an error path," which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.
References
Vulnerable Configurations
  • cpe:2.3:a:libssh:libssh:0.4.7:*:*:*:*:*:*:*
    cpe:2.3:a:libssh:libssh:0.4.7:*:*:*:*:*:*:*
  • cpe:2.3:a:libssh:libssh:0.4.8:*:*:*:*:*:*:*
    cpe:2.3:a:libssh:libssh:0.4.8:*:*:*:*:*:*:*
  • cpe:2.3:a:libssh:libssh:0.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:libssh:libssh:0.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:libssh:libssh:0.5.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:libssh:libssh:0.5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:libssh:libssh:0.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:libssh:libssh:0.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:libssh:libssh:0.5.2:*:*:*:*:*:*:*
    cpe:2.3:a:libssh:libssh:0.5.2:*:*:*:*:*:*:*
CVSS
Base: 5.0 (as of 29-08-2017 - 01:32)
Impact:
Exploitability:
CWE NVD-CWE-noinfo
CAPEC
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:N/I:N/A:P
refmap via4
bid 56604
confirm http://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/
debian DSA-2577
fedora
  • FEDORA-2012-18610
  • FEDORA-2012-18677
mandriva MDVSA-2012:175
misc https://bugzilla.redhat.com/show_bug.cgi?id=871617
mlist [oss-security] 20121120 libssh 0.5.3 release fixes multiple security issues
suse
  • openSUSE-SU-2012:1620
  • openSUSE-SU-2012:1622
  • openSUSE-SU-2013:0130
ubuntu USN-1640-1
xf libssh-multiple-dos(80220)
Last major update 29-08-2017 - 01:32
Published 30-11-2012 - 22:55
Last modified 29-08-2017 - 01:32
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