CVE-2018-6612

An integer underflow bug in the process_EXIF function of the exif.c file of jhead 3.00 raises a heap-based buffer over-read when processing a malicious JPEG file, which may allow a remote attacker to cause a denial-of-service attack or unspecified other impact.

Updated jhead package fixes security vulnerability:

An integer underflow bug in the process_EXIF function of the exif.c file of jhead 3.00 raises a heap-based buffer over-read when processing a malicious JPEG file, which may allow a remote attacker to cause a denial-of-service attack or unspecified other impact (CVE-2018-6612).

This update for jhead fixes the following issues:

jhead was updated to 3.06.0.1

• lot of fuzztest fixes
• Apply a whole bunch of patches from Debian.
• Spell check and fuzz test stuff from Debian, nothing useful to human users.
• Add option to set exif date from date from another file.
• Bug fixes relating to fuzz testing.
• Fix bug where thumbnail replacement DID NOT WORK.
• Fix bug when no orientation tag is present
• Fix bug of not clearing exif information when processing images with an without exif data in one invocation.
• Remove some unnecessary warnings with some types of GPS data
• Remove multiple copies of the same type of section when deleting section types

This update for jhead fixes the following issues:

jhead was updated to 3.06.0.1

• lot of fuzztest fixes
• Apply a whole bunch of patches from Debian.
• Spell check and fuzz test stuff from Debian, nothing useful to human users.
• Add option to set exif date from date from another file.
• Bug fixes relating to fuzz testing.
• Fix bug where thumbnail replacement DID NOT WORK.
• Fix bug when no orientation tag is present
• Fix bug of not clearing exif information when processing images with an without exif data in one invocation.
• Remove some unnecessary warnings with some types of GPS data
• Remove multiple copies of the same type of section when deleting section types

This update was imported from the openSUSE:Leap:15.2:Update update project.

These are all security issues fixed in the jhead-3.06.0.1-1.3 package on the GA media of openSUSE Tumbleweed.

It was discovered that Jhead did not properly handle certain crafted images while processing the Exif markers. An attacker could possibly use this issue to crash Jhead, resulting in a denial of service.