Patch  oval:com.redhat.rhsa:def:20030395
RHSA-2003:395: gnupg security update (Important)  

GnuPG is a utility for encrypting data and creating digital signatures.
Phong Nguyen identified a severe bug in the way GnuPG creates and uses ElGamal keys, when those keys are used both to sign and encrypt data. This vulnerability can be used to trivially recover the private key. While the default behavior of GnuPG when generating keys does not lead to the creation of unsafe keys, by overriding the default settings an unsafe key could have been created.
If you are using ElGamal keys, you should revoke those keys immediately.
The packages included in this update do not make ElGamal keys safe to use; they merely include a patch by David Shaw that disables functions that would generate or use ElGamal keys.
To determine if your key is affected, run the following command to obtain a list of secret keys that you have on your secret keyring:
gpg --list-secret-keys
The output of this command includes both the size and type of the keys found, and will look similar to this example:
/home/example/.gnupg/secring.gpg ---------------------------------------------------- sec 1024D/01234567 2000-10-17 Example User <example@example.com> uid Example User <example@example.com>
The key length, type, and ID are listed together, separated by a forward slash. In the example output above, the key's type is "D" (DSA, sign and encrypt). Your key is unsafe if and only if the key type is "G" (ElGamal, sign and encrypt). In the above example, the secret key is safe to use, while the secret key in the following example is not:
/home/example/.gnupg/secring.gpg ---------------------------------------------------- sec 1024G/01234567 2000-10-17 Example User <example@example.com> uid Example User <example@example.com>
For more details regarding this issue, as well as instructions on how to revoke any keys that are unsafe, refer to the advisory available from the GnuPG web site:
http://www.gnupg.org/
Create Date: 2003-12-10 Last Update Date: 2003-12-10

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: unix (from OVAL definitions)
  • Red Hat Enterprise Linux 3

References

Criteria

The patch should be installed
IF : All of the following are true
IF : Red Hat Enterprise Linux 3 is installed
Linux : RPM Test :  Red Hat Enterprise Linux 3 is installed 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20030315001 (Object depth limit may be exceeded) !!!
version pattern match ^3[^\d]
linux : rpminfo_state 
IF : gnupg is earlier than 0:1.2.1-10
Linux : RPM Test :  gnupg is earlier than 0:1.2.1-10 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20030395002 (Object depth limit may be exceeded) !!!
RPM Version less than 0:1.2.1-10 (datatype=evr_string)
linux : rpminfo_state 
IF : gnupg is signed with Red Hat master key
Linux : RPM Test :  gnupg is signed with Red Hat master key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20030395002 (Object depth limit may be exceeded) !!!
signature_keyid equals 219180cddb42a60e
linux : rpminfo_state 

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evr_string datatype
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