GnuPG gpgkeys_hkp utility format string

gnupg-gpgkeyshkp-format-string (13892) The risk level is classified as HighHigh Risk

Description:

GNU Privacy Guard (GnuPG or GPG) is vulnerable to a format string attack in the gpgkeys_hkp utility. If the HKP interface is enabled, a remote attacker could perform a man-in-the-middle attack to exploit this vulnerability and cause the GnuPG to crash or execute arbitrary code on the system.


Consequences:

Gain Privileges

Remedy:

Reportedly, this vulnerability is fixed in the latest CVS version for the 1.2.x stable branch and in version 1.3.4 for the development branch. See S-Quadra Advisory #2003-12-03 for more information. See References.

For SuSE Linux:
Upgrade to the latest gpg package, as listed below. Refer to SuSE Security Announcement SuSE-SA:2003:048 for more information. See References.

SuSE Linux 9.0 (Intel): 1.2.2-121 or later
SuSE Linux 8.2: 1.2.2rcl-98 or later
SuSE Linux 9.0 (x86_64): 1.2.2-117 or later

For Gentoo Linux:
Upgrade to the latest version of gnupg (1.2.3-r5 or later), as listed in Gentoo Linux Security Announcement 200312-05. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

Platforms Affected:

  • Gentoo Linux
  • 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 1.3.3
  • GnuPG GnuPG 1.2.2 r1
  • GnuPG GnuPG 1.2.2 rc1
  • Novell SuSE Linux Enterprise Server 7.0
  • SuSE Linux Enterprise Server 8
  • SuSE SuSE eMail Server 3.1
  • SuSE SuSE eMail Server III
  • SUSE SuSE Linux 7.3
  • SUSE SuSE Linux 8.0
  • SUSE SuSE Linux 8.2
  • SUSE SuSE Linux 9.0
  • SuSE SuSE Linux Connectivity Server
  • SuSE SuSE Linux Database Server
  • SuSE SuSE Linux Firewall
  • SuSE SuSE Linux Office Server
  • SuSE SuSE Linux School Server
  • SuSE SuSE Linux Standard Server 8

Reported:

Dec 03, 2003

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