Calligra is an office suite by KDE.
An error in the read() function in styles.cpp could cause a heap-based buffer overflow.
A remote attacker could entice a user to open a specially crafted ODF file, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.
There is no known workaround at this time.
All Calligra users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-office/calligra-2.4.3-r1"