[security-alerts] FW: [SA21003] Juniper Networks JUNOS IPv6 Packet Handling Denial of Service

["Kazennov, Vladimir" <Vladimir.Kazennov@xxxxxxxxxx>]

> 
> TITLE:
> Juniper Networks JUNOS IPv6 Packet Handling Denial of Service
> 
> SECUNIA ADVISORY ID:
> SA21003
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/21003/
> 
> CRITICAL:
> Moderately critical
> 
> IMPACT:
> DoS
> 
> WHERE:
> From remote
> 
> OPERATING SYSTEM:
> JUNOS 6.x
> http://secunia.com/product/3418/
> JUNOS 7.x
> http://secunia.com/product/5158/
> JUNOS 8.x
> http://secunia.com/product/10974/
> 
> DESCRIPTION:
> A vulnerability has been reported in the M-series, T-series, and
> J-Series routers, which can be exploited by malicious people to cause
> a DoS (Denial of Service).
> 
> The vulnerability is caused due to an error when freeing memory after
> receiving certain IPv6 packets. This can be exploited to cause a
> exhaust available memory by sending specially crafted IPv6 packets to
> the vulnerable router.
> 
> Successful exploitation crashes the router.
> 
> The vulnerability has been reported for routers using a version of
> the JUNOS Internet Software built before 2006-05-10.
> 
> SOLUTION:
> Apply an updated version of the JUNOS software.
> 
> PROVIDED AND/OR DISCOVERED BY:
> Reported by the vendor.
> 
> ORIGINAL ADVISORY:
> http://www.juniper.net/support/security/alerts/IPv6_bug.txt
> http://www.juniper.net/support/security/alerts/EXT-PSN-2006-06-017.txt
>