CVE-2002-0059

high-risk
Published 2002-03-15

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.

Do I need to act?

!
28.1% chance of exploitation in next 30 days
EPSS score — higher than 72% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Zlib

References (32)

Broken Link ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-015.1.txt
Broken Link http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000469
Broken Link http://frontal2.mandriva.com/security/advisories?name=MDKSA-2002:022
Broken Link http://www.caldera.com/support/security/advisories/CSSA-2002-014.1.txt
Third Party Advisory http://www.cert.org/advisories/CA-2002-07.html
Broken Link http://www.debian.org/security/2002/dsa-122
Third Party Advisory http://www.kb.cert.org/vuls/id/368819
Broken Link http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-023.php
Broken Link http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-024.php3
Broken Link http://www.redhat.com/support/errata/RHSA-2002-026.html
Broken Link http://www.redhat.com/support/errata/RHSA-2002-027.html
Broken Link http://www.securityfocus.com/bid/4267
Broken Link http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-030
Broken Link http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-036
Broken Link http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBTL0204-037
Third Party Advisory https://exchange.xforce.ibmcloud.com/vulnerabilities/8427
Broken Link ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-015.1.txt
Broken Link http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000469
Broken Link http://frontal2.mandriva.com/security/advisories?name=MDKSA-2002:022
Broken Link http://www.caldera.com/support/security/advisories/CSSA-2002-014.1.txt
and 12 more references
52
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 15/34 · Moderate
Exposure 5/34 · Minimal