1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200706-09 / libexif |
| Release Date | June 26, 2007 |
| Latest Revision | June 26, 2007: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| media-libs/libexif | < 0.6.16 | >= 0.6.16 | All supported architectures |
Related bugreports: #181922
libexif does not properly handle image EXIF information, possibly allowing for the execution of arbitrary code.
libexif is a library for parsing, editing and saving EXIF metadata from images.
iDefense Labs have discovered that the exif_data_load_data_entry() function in libexif/exif-data.c improperly handles integer data while working with an image with many EXIF components, allowing an integer overflow possibly leading to a heap-based buffer overflow.
An attacker could entice a user of an application making use of a vulnerable version of libexif to load a specially crafted image file, possibly resulting in a crash of the application or the execution of arbitrary code with the rights of the user running the application.
There is no known workaround at this time.
All libexif users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.16" |