Date: Tue, 6 Dec 2016 14:51:26 +0100 From: Andrej Nemec <anemec@...hat.com> To: OSS Security Mailinglist <oss-security@...ts.openwall.com> Cc: dkaspar@...hat.com Subject: Tcsh: Out-of-bounds read in c_substitute() Hello folks, We were made aware of an out-of-bounds read issue that was reported to Tcsh upstream and fixed. This issue could result in a crash after starting tcsh and hitting TAB on some systems. Right now, the issue is contained in Fedora/RHEL, because we're using glibc's sysmalloc (not the builtin malloc), which masks the issue. Fedora maintainer decided to fix this anyway just to be safe. As far as our systems are concerned we don't consider this a security issue for now. I am looking forward to hearing other opinions if anyone is interested. Bug report: http://mx.gw.com/pipermail/tcsh-bugs/2016-December/001103.html Upstream fix: https://github.com/tcsh-org/tcsh/commit/6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596 Best Regards, -- Andrej Nemec, Red Hat Product Security 3701 3214 E472 A9C3 EFBE 8A63 8904 44A1 D57B 6DDA Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)
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