CVE-2008-0122: Buffer overflow in inet_network()
  • 23 May 2013
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CVE-2008-0122: Buffer overflow in inet_network()

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Article summary

An off-by-one error in the inet_network() function in libbind could lead to memory corruption with certain inputs.


CVE-2008-0122    VU#203611

Posting date: 

18 Jan 2008

Program Impacted: 


Versions affected: 

8 (all versions) 9.0 (all versions) 9.1 (all versions) 9.2 (all versions) 9.3.0, 9.3.1, 9.3.2, 9.3.3, 9.3.4 9.4.0, 9.4.1, 9.4.2 9.5.0a1, 9.5.0a2, 9.5.0a3, 9.5.0a4, 9.5.0a5, 9.5.0a6, 9.5.0a7, 9.5.0b1






An off-by-one error in the inet_network() function in libbind could lead to memory corruption with certain inputs.


Applications linked against libbind which call inet_network() with untrusted inputs could lead to a denial-of-service or potentially code execution.?



Active exploits:

None known at this time. 


                Upgrade to 9.3.5, 9.4.3, 9.5.0b2 or later when released.

Otherwise, apply the patch below to:

BIND 9: lib/bind/inet/inet_network.c BIND 8: lib/inet/inet_network.c

Index: inet_network.cdiff -u inet_network.c:1.5 inet_network.c:1.6--- inet_network.c:1.5 Wed Apr 27 04:56:21 2005+++ inet_network.c Tue Jan 15 04:02:01 2008@@ -84,9 +84,9 @@}if (!digit)return (INADDR_NONE);+ if (pp >= parts 4 || val > 0xffU)+ return (INADDR_NONE);if (*cp == '.') {- if (pp >= parts + 4 || val > 0xffU)- return (INADDR_NONE);*pp++ = val, cp++;goto again;}

Questions should be addressed to

Acknowledgements: ISC would like to thank Nate Eldredge for reporting this.  

Related Documents:

See our BIND Security Matrix for a complete listing of Security Vulnerabilities and versions affected.

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Do you still have questions?   Questions regarding this advisory should go to

Note: ISC patches only currently supported versions. When possible we indicate EOL versions affected.

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This Knowledge Base article is the complete and official security advisory document.

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