A buffer overflow in imagemagick's EXIF parsing routine has been discovered in imagemagick versions prior to 6.1.0. Trying to query EXIF information of a malicious image file might result in execution of arbitrary code with the user's privileges. Since imagemagick can be used in custom printing systems, this also might lead to privilege escalation (execute code with the printer spooler's privileges). However, Ubuntu's standard printing system does not use imagemagick, thus there is no risk of privilege escalation in a standard installation.
Recently, Trustix Secure Linux discovered a vulnerability in the postgresql-contrib package. The script "makeoidjoinscheck" created temporary files in an insecure way, which allowed a symlink attack to create or overwrite arbitrary files with the privileges of the user invoking the script.
Recently, Trustix Secure Linux discovered some vulnerabilities in the gettext package. The programs "autopoint" and "gettextize" created temporary files in an insecure way, which allowed a symlink attack to create or overwrite arbitrary files with the privileges of the user invoking the program.