CVE-2002-0059

Name: CVE-2002-0059
Creator: NVD / NIST
Published: 2002-03-15T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 9.51%

Last modified Jun 16, 2026

CVE-2002-0059 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The decompression algorithm in zlib 1.1.3 and earlier, as used in many different utilities and packages, causes inflateEnd to release certain memory more than once (a "double free"), which may allow local and remote attackers to execute arbitrary code via a block of malformed compression data.. EPSS estimates a 9.51% chance of exploitation in the next 30 days.

Description

The decompression algorithm in zlib 1.1.3 and earlier, as used in many different utilities and packages, causes inflateEnd to release certain memory more than once (a "double free"), which may allow local and remote attackers to execute arbitrary code via a block of malformed compression data.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

9.51%

94.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-415

Affected Software

Vendor	Product	Versions
Zlib	Zlib	<= 1.1.3

References

ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-015.1.txtBroken Link
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000469Broken Link
http://frontal2.mandriva.com/security/advisories?name=MDKSA-2002:022Broken Link
http://www.caldera.com/support/security/advisories/CSSA-2002-014.1.txtBroken Link
http://www.cert.org/advisories/CA-2002-07.htmlThird Party Advisory, US Government Resource
http://www.debian.org/security/2002/dsa-122Broken Link
http://www.kb.cert.org/vuls/id/368819Third Party Advisory, US Government Resource
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-023.phpBroken Link, Patch, Vendor Advisory
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-024.php3Broken Link
http://www.redhat.com/support/errata/RHSA-2002-026.htmlBroken Link, Patch, Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2002-027.htmlBroken Link, Patch, Vendor Advisory
http://www.securityfocus.com/bid/4267Broken Link, Third Party Advisory, VDB Entry
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-030Broken Link
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-036Broken Link
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-037Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/8427Third Party Advisory, VDB Entry
ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-015.1.txtBroken Link
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000469Broken Link
http://frontal2.mandriva.com/security/advisories?name=MDKSA-2002:022Broken Link
http://www.caldera.com/support/security/advisories/CSSA-2002-014.1.txtBroken Link
http://www.cert.org/advisories/CA-2002-07.htmlThird Party Advisory, US Government Resource
http://www.debian.org/security/2002/dsa-122Broken Link
http://www.kb.cert.org/vuls/id/368819Third Party Advisory, US Government Resource
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-023.phpBroken Link, Patch, Vendor Advisory
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-024.php3Broken Link
http://www.redhat.com/support/errata/RHSA-2002-026.htmlBroken Link, Patch, Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2002-027.htmlBroken Link, Patch, Vendor Advisory
http://www.securityfocus.com/bid/4267Broken Link, Third Party Advisory, VDB Entry
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-030Broken Link
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-036Broken Link
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-037Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/8427Third Party Advisory, VDB Entry

Timeline

Published: Mar 15, 2002
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2002-0059?

How severe is CVE-2002-0059?

CVE-2002-0059 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 9.51% probability of exploitation in the next 30 days.

How do I fix CVE-2002-0059?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2002-0059?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST