A flaw was reported in the uscan script of devscripts:
From that bug report:
The newfangled debian/copyright-driven repacking can be exploited by
malicious upstream to execute arbitrary code.
devscripts is not included in Fedora 18 or 19. It looks to be part of rawhide/the upcoming Fedora 20.
Although some Debian stuff is bundled in the rpmdevtools package, uscan does not appear to be.
Created devscripts tracking bugs for this issue:
Affects: fedora-rawhide [bug 1040267]
CVE request: http://www.openwall.com/lists/oss-security/2013/12/11/1
Common Vulnerabilities and Exposures assigned an identifier CVE-2013-7050 to
the following vulnerability:
The get_main_source_dir function in scripts/uscan.pl in devscripts
before 2.13.8, when using USCAN_EXCLUSION, allows remote attackers to
execute arbitrary commands via shell metacharacters in a directory
devscripts-2.13.5-2.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.