gzip unpack.c buffer underflow
| gzip-unpack-buffer-underflow (29042) |  High Risk |
Description:
gzip is vulnerable to a buffer underflow, caused by improper bounds checking by the build_tree function in unpack.c. By creating a malicious gzip file, a remote attacker could cause a buffer underflow and cause the application to crash or possibly execute arbitrary code on the system, if the attacker could persuade the victim to open the malicious file.
*CVSS:
| Base Score: | 5.6 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 4.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
For FreeBSD:
Refer to FreeBSD Security Advisory FreeBSD-SA-06:21.gzip for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-349-1 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0667-3 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200609-13 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200611-24 for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux:
Refer to DSA-1181-1 for patch, upgrade, or suggested workaround information. See References.
For HP Tru64 UNIX:
Refer to Hewlett-Packard Company Security Bulletin HPSBTU02168 SSRT061237 for patch or upgrade information. See References.
Apply Apple Security Update 2006-007, available from the Apple Web site. See References.
For SUSE Linux:
Refer to SUSE-SA:2006:056 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Apple Security Update 2006-007: About the security content of Security Update 2006-007.
- BugTraq Mailing List, Mon Oct 30 2006 - 14:34:37 CST : [security bulletin] HPSBTU02168 SSRT061237 rev.1 - HP Tru64 UNIX Running gzip, gunzip, and gzcat, Remote Unauthorized Arbitrary Code Execution or Denial of Service (DoS).
- Bugzilla Bug 204676: CVE-2006-4334 gzip multiple issues (CVE-2006-4335, CVE-2006-4336, CVE-2006-4337, CVE-2006-4338).
- FreeBSD-SA-06:21.gzip: Multiple vulnerabilities in gzip.
- Full-Disclosure Mailing List, Tue Sep 19 2006 - 12:15:57 CDT: rPSA-2006-0170-1 gzip.
- ASA-2006-218: gzip security update (RHSA-2006-0667)
- ASA-2007-034: Multiple Security Vulnerabilities in the gzip(1) Command May Lead to Denial of Service (DoS) or Execution of Arbitrary Code (SUN 102766)
- BID-20101: GNU GZip Archive Handling Multiple Remote Vulnerabilities
- 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.
- DSA-1181: gzip -- several vulnerabilities
- GLSA-200609-13: gzip: Multiple vulnerabilities
- GLSA-200611-24: LHa: Multiple vulnerabilities
- MDKSA-2006:167: Updated gzip packages fix multiple vulnerabilities
- OpenPKG-SA-2006.020: gzip
- RHSA-2006-0667: gzip security update
- SA21996: gzip Multiple Vulnerabilities
- SA22435: Avaya Products gzip Multiple Vulnerabilities
- SA22661: HP Tru64 UNIX gzip Multiple Vulnerabilities
- SA23153: LHa Multiple Vulnerabilities
- SA23155: Mac OS X Security Update Fixes Multiple Vulnerabilities
- SA24636: VMware ESX Server Multiple Security Updates
- SECTRACK ID: 1016883: Gzip Bugs in Expanding Archives Let Remote Users Cause Denial of Service Conditions or Arbitrary Code Execution
- SUSE-SA:2006:056: gzip security problems
Platforms Affected:
- Apple Mac OS X 10.3.9
- Apple Mac OS X 10.4.8
- Apple Mac OS X Server 10.3.9
- Apple Mac OS X Server 10.4.8
- Canonical Ubuntu 4.10
- Canonical Ubuntu 5.04
- Canonical Ubuntu 5.10
- Canonical Ubuntu 6.06 LTS
- Debian Debian Linux 3.1
- FreeBSD FreeBSD
- Gentoo Linux
- GNU gzip 1.3.5
- MandrakeSoft Mandrake Linux 2006
- MandrakeSoft Mandrake Linux 2006 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft Mandrake Multi Network Firewall 2.0
- Novell SLE SDK 10
- Novell UnitedLinux 1.0
- OpenPKG OpenPKG 2-STABLE
- OpenPKG OpenPKG 2.5
- OpenPKG OpenPKG CURRENT
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 Desktop
- RedHat Linux Advanced Workstation 2.1 Itanium
- SuSE Linux Enterprise Server 8
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 10.1
- SUSE SuSE Linux 9.2
- SUSE SuSE Linux 9.3
- SuSE SuSE Linux Desktop 1.0
- SuSE SuSE SLES 10
- SuSE SuSE SLES 9
- Turbolinux Turbolinux 10 Desktop
- Turbolinux Turbolinux 10 F...
- Turbolinux Turbolinux 10 Server
- Turbolinux Turbolinux 10 Server x64 Ed
- Turbolinux Turbolinux 7 Server
- Turbolinux Turbolinux 8 Server
- Turbolinux Turbolinux FUJI
- Turbolinux Turbolinux Home
- Turbolinux Turbolinux Multimedia
- Turbolinux Turbolinux Personal
- Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
- Turbolinux Turbolinux Appliance Server 2.0
Reported:
Sep 19, 2006
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