---
title: "CVE-1999-0833 - nxt bug"
slug: "aa-00939"
description: "Buffer overflow in BIND 8.2 via NXT records."
updated: 2019-06-06T13:43:31Z
published: 2019-06-06T13:43:31Z
canonical: "kb.isc.org/aa-00939"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.isc.org/llms.txt
> Use this file to discover all available pages before exploring further.

# CVE-1999-0833 - nxt bug

Buffer overflow in BIND 8.2 via NXT records.

```
          CVE: 
```

[CVE-1999-0833](http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-1999-0833)

```
          Posting date: 

                08 Nov 1999        

    

        
                  
          Program Impacted: 

                [BIND](https://www.isc.org/bind)        

    

        
                  
          Versions affected: 

                8.2, 8.2.1        

    

        
                  
          Severity: 

                Critical        

    

        
                  
          Exploitable: 

                Remotely        

    

  Description: 

        
                A bug in the processing of NXT records can
```

theoretically allow an attacker to gain access to the system running the DNS server with the same privileges that the BIND process has.

```
  Workarounds: 

        
                None.

    

    

  Active exploits: 

        
                Scripts are available to implement this attack.        

    

  Solution: 

        
                Upgrade to 8.2.2 or newer
```

**© 2001-2018 Internet Systems Consortium** For assistance with problems and questions for which you have not been able to find an answer in our Knowledge Base, we recommend searching our [community mailing list archives](https://lists.isc.org/mailman/listinfo) and/or posting your question there (you will need to register there first for your posts to be accepted). The [bind-users](https://lists.isc.org/mailman/listinfo/bind-users) and the [dhcp-users](https://lists.isc.org/mailman/listinfo/dhcp-users) lists particularly have a long-standing and active membership. ISC relies on the financial support of the community to fund the development of its open source software products. If you would like to support future product evolution and maintenance as well having peace of mind knowing that our team of experts are poised to provide you with individual technical assistance whenever you call upon them, then please consider our Professional Subscription Support services - details can be found on our [main website](https://www.isc.org/support).