GnuPG improper non-detached signature verification
| gnupg-nondetached-sig-verification (25184) |  Low Risk |
Description:
GNU Privacy Guard (GnuPG or GPG) could allow certain non-detached signature files to bypass signature verification. This could allow a remote attacker to inject arbitrary data into digitally signed files or messages, resulting in the loss of data integrity for digitally signed files.
Consequences:
Other
Remedy:
Upgrade to the latest version of GnuPG (1.4.2.2 or later), available from GnuPG.org. See References.
For Debian GNU/Linux:
Refer to DSA-993-2 for patch, upgrade, or suggested workaround information. See References.
For SGI Advanced Linux Environment:
Refer to SGI Security Advisory 20060401-01-U for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0266-8 or RHSA-2006:0265-9 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2006-03-08 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-264-1 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE Security Announcement SUSE-SA:2006:014 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for patch or upgrade information.
References:
- BugTraq Mailing List, Thu Mar 09 2006 - 12:53:40 CST : GnuPG does not detect injection of unsigned data.
- GnuPG.org: Download.
- SGI Security Advisory 20060401-01-U: SGI Advanced Linux Environment 3 Security Update #56.
- ASA-2006-070: gnupg security update (RHSA-2006-0266)
- BID-17058: GnuPG Incorrect Non-Detached Signature Verification Vulnerability
- CVE-2006-0049: gpg in GnuPG before 1.4.2.2 does not properly verify non-detached signatures, which allows attackers to inject unsigned data via a data packet that is not associated with a control packet, which causes the check for concatenated signatures to report that the signature is valid, a different vulnerability than CVE-2006-0455.
- DSA-993: gnupg -- programming error
- GLSA-200603-08: GnuPG: Incorrect signature verification
- MDKSA-2006:055: Updated gnupg packages fix signature file verification vulnerability
- OSVDB ID: 23790: GnuPG gpg Unsigned Data Injection Detection Failure
- RHSA-2006-0266: gnupg security update
- SA19173: GnuPG Unsigned Data Injection Detection Vulnerability
- SECTRACK ID: 1015749: GnuPG May Fail to Detect the Injection of Unsigned Data
- SUSE-SA:2006:014: gpg signature checking problems
- USN-264-1: gnupg vulnerability
- VUPEN/ADV-2006-0915: GnuPG Unsigned Data Injection and Signature Verification Bypass Vulnerability
Platforms Affected:
- Canonical Ubuntu 4.10
- Canonical Ubuntu 5.04
- Canonical Ubuntu 5.10
- Debian Debian Linux 3.0
- Debian Debian Linux 3.1
- Gentoo Linux
- 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
- MandrakeSoft Mandrake Linux 2006 X86_64
- MandrakeSoft Mandrake Linux 2006
- 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
- Novell UnitedLinux 1.0
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 ES
- RedHat Linux Advanced Workstation 2.1 Itanium
- SGI Advanced Linux Environment 3
- SuSE Linux Enterprise Server 8
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 9.1
- SUSE SuSE Linux 9.2
- SUSE SuSE Linux 9.3
- SuSE SuSE Linux Desktop 1.0
- SuSE SuSE SLES 9
Reported:
Mar 09, 2006
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