Package: libsnmp-python
Version: 5.4.1~dfsg-12
Severity: important
Hi,
I was able to reproduce a bug affecting python bindings.
When creating a snmpv3 session towards an _unreachable_ host libsnmp-python
caused a segfault when calling the get method.
It stores a null pointer as session pointer, and that is passed onwards to the
snmpget code.
Actually this issue can be skipped in python by checking:
if sess.sess_ptr != 0:
...
but probably it would make sense to avoid creating the session object at all
(so in the Session class contructor in python/netsnmp/client.py by raising an
exception).
code to reproduce the issue:
import netsnmp
myvars = netsnmp.VarList(netsnmp.Varbind('.1.3.6.1.2.1.1.5.0', iid = ''))
sess = netsnmp.Session(Version = 3,SecLevel = 'noAuthPriv' , DestHost =
'10.101.101.1', SecName= 'fake_user', Retries = 1, Timeout = 5 * 1000000)
res = sess.get(myvars)
Regards,
Gabriele Messineo
-- System Information:
Debian Release: 5.0
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-1-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages libsnmp-python depends on:
ii libc6 2.7-18 GNU C Library: Shared libraries
ii libsnmp15 5.4.1~dfsg-12 SNMP (Simple Network Management Pr
ii python 2.5.2-3 An interactive high-level object-o
ii python-central 0.6.8 register and build utility for Pyt
libsnmp-python recommends no packages.
libsnmp-python suggests no packages.
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