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Fedora Linux Advisory: gnupgDec 12, 2003, 02:28 (0 Talkback[s])
Fedora Security Update Notification
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 for encryption.
This update can be downloaded from:
This update can also be installed with the Update Agent; you can launch the Update Agent with the 'up2date' command.
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