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=========================================================== Ubuntu Security Notice USN-607-1 May 06, 2008 emacs21, emacs22 vulnerabilities CVE-2007-6109, CVE-2008-1694 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 7.04 Ubuntu 7.10 Ubuntu 8.04 LTS This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: emacs21 21.4a-3ubuntu2.2 emacs21-bin-common 21.4a-3ubuntu2.2 Ubuntu 7.04: emacs21 21.4a+1-2ubuntu1.2 emacs21-bin-common 21.4a+1-2ubuntu1.2 Ubuntu 7.10: emacs22 22.1-0ubuntu5.2 emacs22-bin-common 22.1-0ubuntu5.2 Ubuntu 8.04 LTS: emacs22 22.1-0ubuntu10.1 emacs22-bin-common 22.1-0ubuntu10.1 After a standard system upgrade you need to restart Emacs to effect the necessary changes. Details follow: It was discovered that Emacs did not account for precision when formatting integers. If a user were tricked into opening a specially crafted file, an attacker could cause a denial of service or possibly other unspecified actions. This issue does not affect Ubuntu 8.04. (CVE-2007-6109) Steve Grubb discovered that the vcdiff script as included in Emacs created temporary files in an insecure way when used with SCCS. Local users could exploit a race condition to create or overwrite files with the privileges of the user invoking the program. (CVE-2008-1694)