# CVE-2007-2930: Other in n/a

> Remote attackers can poison DNS caches by exploiting predictable query identifiers in ISC BIND 8 resolver operations.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Sep 2007
- **Updated:** 7 Aug 2024
- **Also known as:** CVE-2007-4019, GHSA-8m5r-mf8j-3hfx

## What is CVE-2007-2930?

CVE-2007-2930 is a medium-severity vulnerability in Isc Bind, published on 12 Sep 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The (1) NSID_SHUFFLE_ONLY and (2) NSID_USE_POOL PRNG algorithms in ISC BIND 8 before 8.4.7-P1 generate predictable DNS query identifiers when sending outgoing queries such as NOTIFY messages when answering questions as a resolver, which allows remote attackers to poison DNS caches via unknown vectors.  NOTE: this issue is different from CVE-2007-2926.

## Which versions are affected by CVE-2007-2930?

It affects 1 product.


Products: Isc Bind.

## How do I fix CVE-2007-2930?

No fix has been published for CVE-2007-2930 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-2930 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-2930 exists.

Public exploit code:

- ISC BIND 8 - Remote Cache Poisoning (1) (exploitdb)
- ISC BIND 8 - Remote Cache Poisoning (2) (exploitdb)

## Other vulnerabilities in Isc Bind

- [CVE-2008-0122](https://insights.sbomify.com/CVE-2008-0122/): Memory corruption in n/a (critical 10.0)
- [CVE-2001-0010](https://insights.sbomify.com/CVE-2001-0010/): Memory corruption in n/a (critical 10.0)
- [CVE-2001-0011](https://insights.sbomify.com/CVE-2001-0011/): Memory corruption in n/a (critical 10.0)
- [CVE-2001-0013](https://insights.sbomify.com/CVE-2001-0013/): Memory corruption in n/a (critical 10.0)
- [CVE-2000-1029](https://insights.sbomify.com/CVE-2000-1029/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-2930 and fix it if it is affected.

What it is: CVE-2007-2930 is a medium-severity vulnerability in Isc Bind, published on 12 Sep 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-2930 exists.

Affected product: Isc Bind. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2007-2930/ (Markdown: https://insights.sbomify.com/CVE-2007-2930/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-2930
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-2930
- OSV: https://osv.dev/vulnerability/CVE-2007-2930

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-2930/
Summaries are generated and may contain mistakes; the official description above is the record.