An issue was discovered in GNU patch through 2.7.6. There is a segmentation fault, associated with a NULL pointer dereference, leading to a denial of service in the intuitdifftype function in pch.c, aka a "mangled rename" issue.
References
- http://www.securityfocus.com/bid/103044
- https://git.savannah.gnu.org/cgit/patch.git/commit/?id=f290f48a621867084884bfff87f8093c15195e6a
- https://savannah.gnu.org/bugs/index.php?53132
- https://security.gentoo.org/glsa/201904-17
- https://usn.ubuntu.com/3624-1/
- http://www.securityfocus.com/bid/103044
- https://git.savannah.gnu.org/cgit/patch.git/commit/?id=f290f48a621867084884bfff87f8093c15195e6a
- https://savannah.gnu.org/bugs/index.php?53132
- https://security.gentoo.org/glsa/201904-17
- https://usn.ubuntu.com/3624-1/