Fedora 26: 2018-78570112db Moderate: Leptonica Path Handling Issues

The library supports many operations that are useful on

* Document images

* Natural images

Fundamental image processing and image analysis operations

* Rasterop (aka bitblt)

* Affine transforms (scaling, translation, rotation, shear)

on images of arbitrary pixel depth

* Projective and bi-linear transforms

* Binary and gray scale morphology, rank order filters, and

convolution

* Seed-fill and connected components

* Image transformations with changes in pixel depth, both at

the same scale and with scale change

* Pixelwise masking, blending, enhancement, arithmetic ops,

etc.

This update fixes CVE-2017-18196. ---- This update backports security fixes

for CVE-2018-3836, CVE-2018-7186 and CVE-2018-7247.

[ 1 ] Bug #1549410 - CVE-2017-18196 leptonica: Mishandled pathnames in /tmp subdirectories can allow users to bypass intended file restrictions

https://bugzilla.redhat.com/show_bug.cgi?id=1549410

su -c 'dnf upgrade leptonica' at the command line.

For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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