Multiple integer overflow errors in XEmacs might allow remote, user-assisted attackers to execute arbitrary code.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| app-editors/xemacs | * | < 21.4.22-r1 | >= 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.
The movemail utility shipped with GNU Emacs and XEmacs contains several format string vulnerabilities, potentially leading to the execution of arbitrary code.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| app-editors/emacs | * | < 21.4 | >= 21.4, < 19 |
| app-editors/xemacs | * | < 21.4.15-r3 | >= 21.4.15-r3 |
GNU Emacs and XEmacs are highly extensible and customizable text editors. movemail is an Emacs utility that can fetch mail on remote mail servers.
Max Vozeler discovered that the movemail utility contains several format string errors.
An attacker could set up a malicious POP server and entice a user to connect to it using movemail, resulting in the execution of arbitrary code with the rights of the victim user.
There is no known workaround at this time.
All GNU Emacs users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-editors/emacs-21.4"
All XEmacs users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-editors/xemacs-21.4.15-r3"