From owner-dev-commits-src-branches@freebsd.org Tue Aug 24 18:29:53 2021 Return-Path: Delivered-To: dev-commits-src-branches@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 5619165DB69; Tue, 24 Aug 2021 18:29:53 +0000 (UTC) (envelope-from git@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GvHhc14FVz3Ndc; Tue, 24 Aug 2021 18:29:52 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CC3E659C5; Tue, 24 Aug 2021 18:29:51 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 17OITp7J024593; Tue, 24 Aug 2021 18:29:51 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 17OITps7024592; Tue, 24 Aug 2021 18:29:51 GMT (envelope-from git) Date: Tue, 24 Aug 2021 18:29:51 GMT Message-Id: <202108241829.17OITps7024592@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Gordon Tetlow Subject: git: fab38dac6506 - releng/11.4 - Fix libfetch out of bounds read. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: gordon X-Git-Repository: src X-Git-Refname: refs/heads/releng/11.4 X-Git-Reftype: branch X-Git-Commit: fab38dac650664eb614ab28ff2535d97bec21e89 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Aug 2021 18:29:53 -0000 The branch releng/11.4 has been updated by gordon: URL: https://cgit.FreeBSD.org/src/commit/?id=fab38dac650664eb614ab28ff2535d97bec21e89 commit fab38dac650664eb614ab28ff2535d97bec21e89 Author: Gordon Tetlow AuthorDate: 2021-08-24 18:02:42 +0000 Commit: Gordon Tetlow CommitDate: 2021-08-24 18:02:42 +0000 Fix libfetch out of bounds read. Approved by: so Security: SA-21:15.libfetch Security: CVE-2021-36159 --- lib/libfetch/ftp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lib/libfetch/ftp.c b/lib/libfetch/ftp.c index c034b5efa240..1755012fc99b 100644 --- a/lib/libfetch/ftp.c +++ b/lib/libfetch/ftp.c @@ -702,8 +702,11 @@ ftp_transfer(conn_t *conn, const char *oper, const char *file, goto ouch; } l = (e == FTP_PASSIVE_MODE ? 6 : 21); - for (i = 0; *p && i < l; i++, p++) + for (i = 0; *p && i < l; i++, p++) { addr[i] = strtol(p, &p, 10); + if (*p == '\0' && i < l - 1) + break; + } if (i < l) { e = FTP_PROTOCOL_ERROR; goto ouch;