VulnerabilityModified
CVE-2006-4336
Buffer 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 count table that causes a write to a negative index.
HIGH 7.5EPSS 5.85%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Buffer 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 count table that causes a write to a negative index.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 5.85% probability · 93th percentile
- CISA KEV
- Not listed
- Affected
- gzip/gzip
- Source
- secalert@redhat.com
References
- 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
- http://secunia.com/advisories/22009Vendor Advisory
- http://secunia.com/advisories/22012Patch, Vendor Advisory
- http://secunia.com/advisories/22017Vendor Advisory
- http://secunia.com/advisories/22027
- http://secunia.com/advisories/22033Vendor Advisory
- http://secunia.com/advisories/22034Vendor Advisory
- http://secunia.com/advisories/22043Patch, Vendor 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
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-102766-1
- http://support.avaya.com/elmodocs2/security/ASA-2006-218.htm
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.