GnuPG parse-packet.c buffer overflow
| gnupg-parsepacket-bo (27245) |  High Risk |
Description:
GNU Privacy Guard (GnuPG or GPG) is vulnerable to a buffer overflow, caused by improper bounds checking by the parse_user_id() function in the parse-packet.c file. By sending an overly long user ID, a local or remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
Platforms Affected:
- Canonical, Ubuntu 5.04
- Canonical, Ubuntu 5.10
- Canonical, Ubuntu 6.06 LTS
- Debian, Debian Linux 3.0
- Debian, Debian Linux 3.1
- GNU, Privacy Guard 1.0
- GNU, Privacy Guard 1.0.1
- GNU, Privacy Guard 1.0.2
- GNU, Privacy Guard 1.0.3
- GNU, Privacy Guard 1.0.4
- GNU, Privacy Guard 1.0.5
- GNU, Privacy Guard 1.0.6
- GNU, Privacy Guard 1.0.7
- GNU, Privacy Guard 1.2
- GNU, Privacy Guard 1.2.1
- GNU, Privacy Guard 1.2.2
- GNU, Privacy Guard 1.2.3
- 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 1.9.10
- GNU, Privacy Guard 1.9.15
- GNU, Privacy Guard 1.9.20
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux LE2005
- MandrakeSoft, Mandrake Linux LE2005 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Multi Network Firewall 2.0
- OpenPKG, OpenPKG 2-STABLE
- OpenPKG, OpenPKG 2.5
- OpenPKG, OpenPKG CURRENT
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 3 AS
- 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
Remedy:
Apply the patch for this vulnerability, available from the GnuPG CVS Repository. See References.
For Debian GNU/Linux:
Refer to DSA-1107-1 for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux (GnuPG2):
Refer to DSA-1115-1 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0571-4 for patch, upgrade, or suggested workaround information. See References.
For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2006.010 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- GnuPG CVS Repository, GnuPG: trunk/g10/parse-packet.c at http://cvs.gnupg.org/cgi-bin/viewcvs.cgi/trunk/g10/parse-packet.c?rev=4157&view=markup.
- GnuPG.org, Download at http://www.gnupg.org/download/.
- ASA-2006-167: gnupg security update (RHSA-2006-0571)
- BID-18554: GnuPG Parse_User_ID Remote Buffer Overflow Vulnerability
- CVE-2006-3082: parse-packet.c in GnuPG (gpg) 1.4.3 and 1.9.20, and earlier versions, allows remote attackers to cause a denial of service (gpg crash) and possibly overwrite memory via a message packet with a large length (long user ID string), which could lead to an integer overflow, as demonstrated using the --no-armor option.
- DSA-1107: gnupg -- integer overflow
- DSA-1115: gnupg2 -- integer overflow
- MDKSA-2006:110: Updated gnupg packages fix vulnerability
- OpenPKG-SA-2006.010: GNUPG
- RHSA-2006-0571: gnupg security update
- SA20783: GnuPG "parse-packet.c" Denial of Service Vulnerability
- SA21585: Avaya Products GnuPG Denial of Service Vulnerability
- SECTRACK ID: 1016519: GnuPG Integer Overflow in Processing User ID Values May Let Remote Users Execute Arbitrary Code
- SUSE-SR:2006:015: SUSE Security Summary Report
- SUSE-SR:2006:018: SUSE Security Summary Report
- USN-304-1: GnuPG vulnerability
- VUPEN/ADV-2006-2450: GnuPG parse_user_id() Packet Length Handling Integer Overflow Vulnerability
Reported:
Jun 09, 2006
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