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Vulnerability record · CVE-2006-4338 · published 19 September 2006

CVE-2006-4338: Gzip vulnerability

Gzip · Gzip

unlzh.c in the LHZ component in gzip 1.3.5 allows context-dependent attackers to cause a denial of service (infinite loop) via a crafted GZIP archive.

5.0 CVSS 2.0 Medium EPSS 3.8% · top 10.3%
5.0CVSS 2.0 base score
3.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
114References
16 Jun 2026Last modified by NVD

Description

unlzh.c in the LHZ component in gzip 1.3.5 allows context-dependent attackers to cause a denial of service (infinite loop) via a crafted GZIP archive.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=204676
http://docs.info.apple.com/article.html?artnum=304829
http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html
http://secunia.com/advisories/21996
http://secunia.com/advisories/22002 PatchVendor Advisory
http://secunia.com/advisories/22009 PatchVendor Advisory
http://secunia.com/advisories/22012 PatchVendor Advisory
http://secunia.com/advisories/22017 PatchVendor Advisory
http://secunia.com/advisories/22027
http://secunia.com/advisories/22033 PatchVendor Advisory
http://secunia.com/advisories/22034 PatchVendor Advisory
http://secunia.com/advisories/22043 PatchVendor Advisory
http://secunia.com/advisories/22085
http://secunia.com/advisories/22101
http://secunia.com/advisories/22435
http://secunia.com/advisories/22487
http://secunia.com/advisories/22661
http://secunia.com/advisories/23153
http://secunia.com/advisories/23155
http://secunia.com/advisories/23156
http://secunia.com/advisories/23679
http://secunia.com/advisories/24435
http://secunia.com/advisories/24636
http://security.freebsd.org/advisories/FreeBSD-SA-06:21.gzip.asc
http://security.gentoo.org/glsa/glsa-200609-13.xml
http://securitytracker.com/id?1016883
http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.555852 Patch
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102766-1
http://support.avaya.com/elmodocs2/security/ASA-2006-218.htm
http://www.gentoo.org/security/en/glsa/glsa-200611-24.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2006:167
http://www.novell.com/linux/security/advisories/2006_56_gzip.html
http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.020-gzip.html
http://www.osvdb.org/29008
http://www.redhat.com/support/errata/RHSA-2006-0667.html
http://www.securityfocus.com/archive/1/446426/100/0/threaded
http://www.securityfocus.com/archive/1/450078/100/0/threaded
http://www.securityfocus.com/archive/1/451324/100/0/threaded
http://www.securityfocus.com/archive/1/462007/100/0/threaded

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2006-4335Gzip vulnerabilityArray index error in the make_table function in unlzh.c in the LZH decompression component in gzip 1.3.5, when running on certain platforms, allows c…EPSS 5.8%7.5CVE-2006-4336Gzip vulnerabilityBuffer underflow in the build_tree function in unpack.c in gzip 1.3.5 allows context-dependent attackers to execute arbitrary code via a crafted leaf…EPSS 5.9%7.5CVE-2006-4337Gzip vulnerabilityBuffer overflow in the make_table function in the LHZ component in gzip 1.3.5 allows context-dependent attackers to execute arbitrary code via a craf…EPSS 6.0%5.0CVE-2006-4334Gzip vulnerabilityUnspecified vulnerability in gzip 1.3.5 allows context-dependent attackers to cause a denial of service (crash) via a crafted GZIP (gz) archive, whic…EPSS 4.1%

Source: NIST National Vulnerability Database (record CVE-2006-4338), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.