GnuPG OpenPGP packet code execution
| gnupg-openpgp-code-execution (30711) |  High Risk |
Description:
GnuPG could allow a remote attacker to execute arbitrary code on the system, caused by improper handling of malformed OpenPGP packets. A remote attacker could exploit this vulnerability by sending a specially-crafted OpenPGP message to a vulnerable system.
Platforms Affected:
- Canonical, Ubuntu 5.10
- Canonical, Ubuntu 6.06 LTS
- Canonical, Ubuntu 6.10
- Debian, Debian Linux 3.1
- Gentoo, Linux
- GNU, Privacy Guard 1.2.4
- GNU, Privacy Guard 1.2.5
- GNU, Privacy Guard 1.2.6
- GNU, Privacy Guard 1.2.7
- GNU, Privacy Guard 1.3.3
- GNU, Privacy Guard 1.3.4
- GNU, Privacy Guard 1.4
- GNU, Privacy Guard 1.4.1
- GNU, Privacy Guard 1.4.2
- GNU, Privacy Guard 1.4.2.1
- GNU, Privacy Guard 1.4.2.2
- GNU, Privacy Guard 1.4.3
- GNU, Privacy Guard 1.4.4
- GNU, Privacy Guard 1.4.5
- GNU, Privacy Guard 1.9.10
- GNU, Privacy Guard 1.9.15
- GNU, Privacy Guard 1.9.20
- GNU, Privacy Guard 2.0
- GNU, Privacy Guard 2.0.1
- Gpg4win, Gpg4win 1.0.7
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux 2007
- MandrakeSoft, Mandrake Linux 2007 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 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- MandrakeSoft, Mandrake Multi Network Firewall 2.0
- OpenPKG, OpenPKG 2-STABLE
- OpenPKG, OpenPKG CURRENT
- OpenPKG, OpenPKG Enterprise E1.0-SOLID
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux AS
- RedHat, Enterprise Linux ES
- RedHat, Enterprise Linux WS
- RedHat, Linux Advanced Workstation 2.1 Itanium
Remedy:
For GnuPG 1.4.x:
Upgrade to the latest version of GnuPG (1.4.6 or later), available from the GnuPG Web site. See References.
--OR--
Apply the patch for this vulnerability, as listed in the GnuPG-Announce Mailing List posting dated Wed Dec 6 16:55:52 CET 2006. See References.
For GnuPG 2.0.x:
Apply the patch for this vulnerability, as listed in the GnuPG-Announce Mailing List posting dated Wed Dec 6 16:55:52 CET 2006. See References.
For Debian GNU/Linux:
Refer to DSA-1231-1 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0754-2 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200612-03 for patch, upgrade, or suggested workaround information. See References.
For OpenPKG Linux:
Refer to OpenPKG Linux Security Advisory SA-2006.037 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux (gnupg2):
Refer to Gentoo Linux Security Announcement USN-393-2 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux (gnupg):
Refer to Gentoo Linux Security Announcement USN-393-1 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Gain Access
References:
- GnuPG Web site, Download at http://www.gnupg.org/download/.
- GnuPG-Announce Mailing List, Wed Dec 6 16:55:52 CET 2006 , GnuPG: remotely controllable function pointer [CVE-2006-6235] at http://lists.gnupg.org/pipermail/gnupg-announce/2006q4/000491.html.
- ASA-2007-047: gnupg security update (RHSA-2006-0754)
- BID-21462: GnuPG OpenPGP Packet Processing Function Pointer Overwrite Vulnerability
- CVE-2006-6235: A stack overwrite vulnerability in GnuPG (gpg) 1.x before 1.4.6, 2.x before 2.0.2, and 1.9.0 through 1.9.95 allows attackers to execute arbitrary code via crafted OpenPGP packets that cause GnuPG to dereference a function pointer from deallocated stack memory.
- DSA-1231: gnupg -- several vulnerabilities
- GLSA-200612-03: GnuPG: Multiple vulnerabilities
- MDKSA-2006:228: Updated gnupg packages fix vulnerability
- OpenPKG-SA-2006.037: GnuPG
- RHSA-2006-0754: Important: gnupg security update
- SA23245: GnuPG OpenPGP Message Decryption Vulnerability
- SA24047: Avaya Products GnuPG Multiple Vulnerabilities
- SECTRACK ID: 1017349: GnuPG OpenPGP Packet Stack Overflow Lets Remote Users Execute Arbitrary Code
- SUSE-SR:2006:028: SUSE Security Summary Report
- US-CERT VU#427009: GnuPG vulnerable to remote data control
- USN-393-1: GnuPG vulnerability
- USN-393-2: GnuPG2 vulnerabilities
- VUPEN/ADV-2006-4881: GnuPG OpenPGP Messages Processing Remote Function Pointer Overwrite Vulnerability
Reported:
Dec 06, 2006
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