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openssh
openssh-7.2p2-CVE-2018-20685.patch
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File openssh-7.2p2-CVE-2018-20685.patch of Package openssh
From 6010c0303a422a9c5fa8860c061bf7105eb7f8b2 Mon Sep 17 00:00:00 2001 From: "djm@openbsd.org" <djm@openbsd.org> Date: Fri, 16 Nov 2018 03:03:10 +0000 Subject: [PATCH] upstream: disallow empty incoming filename or ones that refer to the current directory; based on report/patch from Harry Sintonen OpenBSD-Commit-ID: f27651b30eaee2df49540ab68d030865c04f6de9 --- scp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) Index: openssh-7.2p2/scp.c =================================================================== --- openssh-7.2p2.orig/scp.c +++ openssh-7.2p2/scp.c @@ -1042,7 +1042,8 @@ sink(int argc, char **argv) size = size * 10 + (*cp++ - '0'); if (*cp++ != ' ') SCREWUP("size not delimited"); - if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { + if (*cp == '\0' || strchr(cp, '/') != NULL || + strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) { run_err("error: unexpected filename: %s", cp); exit(1); }
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