Date: Tue, 19 Jan 2016 00:04:42 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 206386] vendor/libarchive: directory traversal vulnerability/local denial of services Message-ID: <bug-206386-8-HvjmeqJBAN@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-206386-8@https.bugs.freebsd.org/bugzilla/> References: <bug-206386-8@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206386 --- Comment #1 from Jason Unovitch <junovitch@freebsd.org> --- Issue #2 Segfault/infinite loop on malformed CPIO archives. This was patched by delphij@ in head at 282932 [1]. It is in 10.2-RELEASE as part of stable/10 in r283259 [2]. 9.3-RELEASE does not seem to be impacted (too old?). 10.1-RELEASE is impacted. I've validated this in a Poudriere 10.1-RELEASE jail that the base `tar' will spin at 100% CPU while extracting the `crash_dos.tar' available at the upstream bug report [3]. I've also noticed Debian has assigned a temporary bug idea on their security page [4]. It feels like while we are here we can address this in 10.1-RELEASE. [1] https://svnweb.freebsd.org/base?view=revision&revision=282932 [2] https://svnweb.freebsd.org/base?view=revision&revision=283259 [3] https://github.com/libarchive/libarchive/issues/502 [4] https://security-tracker.debian.org/tracker/TEMP-0784213-45868B REPLICATION CASES: ##### FreeBSD 101amd64-default 10.1-RELEASE-p27 FreeBSD 10.1-RELEASE-p27 amd64 # tar xvf crash_dos.tar x .: Can't replace existing directory with non-directory 3251 root 1 92 0 27804K 2612K RUN 0 1:04 64.36% bsdtar ##### FreeBSD 101i386-default 10.1-RELEASE-p27 FreeBSD 10.1-RELEASE-p27 i386 # tar xvf crash_dos.tar x .: Can't replace existing directory with non-directory Fatal Internal Error in libarchive: Negative skip requested. ##### Fixed port # /usr/local/bin/bsdtar xvf crash_dos.tar x .: Can't replace existing directory with non-directory bsdtar: End of file trying to read next cpio header bsdtar: Error exit delayed from previous errors. -- You are receiving this mail because: You are the assignee for the bug.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-206386-8-HvjmeqJBAN>