Multiple integer overflow errors in XEmacs might allow remote, user-assisted attackers to execute arbitrary code.
|Package||app-editors/xemacs on all architectures|
|Affected versions||< 21.4.22-r1|
|Unaffected versions||>= 21.4.22-r1|
XEmacs is a highly extensible and customizable text editor.
Tielei Wang reported multiple integer overflow vulnerabilities in the tiff_instantiate(), png_instantiate() and jpeg_instantiate() functions in glyphs-eimage.c, all possibly leading to heap-based buffer overflows.
A remote attacker could entice a user to open a specially crafted TIFF, JPEG or PNG file using XEmacs, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application, or a Denial of Service condition.
There is no known workaround at this time.
All XEmacs users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-editors/xemacs-21.4.22-r1"
NOTE: This is a legacy GLSA. Updates for all affected architectures are available since July 26, 2009. It is likely that your system is already no longer affected by this issue.
June 03, 2010
June 03, 2010: 01