Bind 8.2.3 hanging

[Aymeric BLAZY]

Hi,

I am running a 8.2.3 bind version on a RedHat 7.0 server. (8.2.3-1 RedHat 
RPM release).
Since a week, I observe this kind of log (RR LAME) followed by a named hang.
This ocurre while someone is trying to use a mail server using this named 
server, visibly for spam forwarding.

Is this hang the fact of this spam tentative ? (RR Lame etc etc ...)
Do a bind upgrade will help ?

Thank you for your responses.

Dec 11 18:59:05 int-web01 named[8215]: Lame server on 'taxsavings.net' (in 
'taxsavings.NET'?): [209.176.132.1].53 'NS1.PLANETKC.COM'
Dec 11 18:59:05 int-web01 named[8215]: Lame server on 'taxsavings.net' (in 
'taxsavings.NET'?): [209.16.211.42].53 'NS1.SAVVIS.net'
Dec 11 18:59:05 int-web01 named[8215]: ns_forw: query(taxsavings.net) All 
possible A RR's lame
Dec 11 19:09:33 int-web01 named[8215]: Cleaned cache of 34 RRsets
Dec 11 19:09:33 int-web01 named[8215]: USAGE 1008094173 1008090573 
CPU=0.27u/0.03s CHILDCPU=0u/0s
Dec 11 19:09:33 int-web01 named[8215]: NSTATS 1008094173 1008090573 A=201 
NS=1 PTR=338 MX=2 ANY=3
Dec 11 19:09:33 int-web01 named[8215]: XSTATS 1008094173 1008090573 RR=546 
RNXD=11 RFwdR=230 RDupR=13 RFail=0RFErr=0 RErr=2 RAXFR=0 RLame=7 ROpts=0 
SSysQ=216 SAns=462 SFwdQ=164 SDupQ=70 SErr=0 RQ=545 RIQ=0 RFwdQ=164 
RDupQ=14 RTCP=0 SFwdR=2
30 SFail=0 SFErr=0 SNaAns=388 SNXD=26 RUQ=0 RURQ=0 RUXFR=0 RUUpd=0