From owner-svn-src-all@freebsd.org Tue Jan 15 15:35:15 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 527EE148DFA7; Tue, 15 Jan 2019 15:35:15 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id EBCC68B9B9; Tue, 15 Jan 2019 15:35:14 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id DCE4B1CD16; Tue, 15 Jan 2019 15:35:14 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x0FFZEiF018788; Tue, 15 Jan 2019 15:35:14 GMT (envelope-from emaste@FreeBSD.org) Received: (from emaste@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x0FFZE94018787; Tue, 15 Jan 2019 15:35:14 GMT (envelope-from emaste@FreeBSD.org) Message-Id: <201901151535.x0FFZE94018787@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: emaste set sender to emaste@FreeBSD.org using -f From: Ed Maste Date: Tue, 15 Jan 2019 15:35:14 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r343043 - head/crypto/openssh X-SVN-Group: head X-SVN-Commit-Author: emaste X-SVN-Commit-Paths: head/crypto/openssh X-SVN-Commit-Revision: 343043 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: EBCC68B9B9 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.958,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jan 2019 15:35:15 -0000 Author: emaste Date: Tue Jan 15 15:35:14 2019 New Revision: 343043 URL: https://svnweb.freebsd.org/changeset/base/343043 Log: scp: disallow empty or current directory Obtained from: OpenBSD scp.c 1.198 Security: CVE-2018-20685 Sponsored by: The FreeBSD Foundation Modified: head/crypto/openssh/scp.c Modified: head/crypto/openssh/scp.c ============================================================================== --- head/crypto/openssh/scp.c Tue Jan 15 09:48:18 2019 (r343042) +++ head/crypto/openssh/scp.c Tue Jan 15 15:35:14 2019 (r343043) @@ -1106,7 +1106,8 @@ sink(int argc, char **argv) SCREWUP("size out of range"); size = (off_t)ull; - 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); }