Package: fakeroot Version: 1.20.2-1 Severity: normal Dear Maintainer,
I noticed fakeroot-tcp binds a tcp socket to INADDR_ANY. This seems worrying, even if we don't know about specific vulnerabilities. I haven't disclosed this observation elsewhere. Triage: I'm not sure how predictable the port number is. Many invocations of fakeroot will be short-lived. So you would need to catch the right port at the right time. The Debian fakeroot package uses fakeroot-sysv by default. However I believe Debian is also acting as upstream, and other distributions (Fedora) do default to fakeroot-tcp. Also fakeroot-tcp is necessary for multi-threaded programs (see the README). fakeroot is sometimes used in package building... I hope there aren't any major build servers compromised by this :(. Fix: replace htonl(INADDR_ANY) in fakerootd.c with htonl(INADDR_LOOPBACK). Not tested, but libfakeroot already connects to INADDR_LOOPBACK. I'm not aware of anything else this would break. Thanks to you all Alan -- System Information: Debian Release: 8.3 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: armel (armv5tel) Kernel: Linux 3.16.0-4-kirkwood Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages fakeroot depends on: iu libc6 2.19-18+deb8u2 ii libfakeroot 1.20.2-1 fakeroot recommends no packages. fakeroot suggests no packages. -- no debconf information
