The gss_userok function in appl/ftp/ftpd/gss_userok.c in Heimdal 0.7.2 does not allocate memory for the ticketfile pointer before calling free, which allows remote attackers to have an unknown impact via an invalid username. NOTE: the vulnerability was originally reported for ftpd.c, but this is incorrect.

The iwl_set_rate function in compatible/iwl3945-base.c in iwlwifi 1.1.21 and earlier dereferences an iwl_get_hw_mode return value without checking for NULL, which might allow remote attackers to cause a denial of service (kernel panic) via unspecified vectors during module initialization.

Multiple buffer overflows in dvi2xx.c in dviljk in teTeX and TeXlive 2007 and earlier might allow user-assisted attackers to execute arbitrary code via a crafted DVI input file.

dvips in teTeX and TeXlive 2007 and earlier allows local users to obtain sensitive information and modify certain data by creating certain temporary files before they are processed by dviljk, which can then be read or modified in place.

Stack-based buffer overflow in hpc.c in dvips in teTeX and TeXlive 2007 and earlier allows user-assisted attackers to execute arbitrary code via a DVI file with a long href tag.

The LOB functionality in PEAR MDB2 before 2.5.0a1 interprets a request to store a URL string as a request to retrieve and store the contents of the URL, which might allow remote attackers to use MDB2 as an indirect proxy or obtain sensitive information via a URL into a form field in an MDB2 application, as demonstrated by a file:// URL or a URL for an intranet web site.