From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx01.omp.ru (mx01.omp.ru [90.154.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A3E47846B for ; Thu, 21 Dec 2023 14:39:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=omp.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=omp.ru Received: from spb1wst017.omp.ru (109.73.39.18) by msexch01.omp.ru (10.188.4.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1258.12; Thu, 21 Dec 2023 17:39:12 +0300 From: Denis Grigorev To: CC: , Subject: [PATCH 2/2] smsutil: Check that submit report fits in memory Date: Thu, 21 Dec 2023 17:16:38 +0300 Message-ID: <20231221141638.19774-3-d.grigorev@omp.ru> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231221141638.19774-1-d.grigorev@omp.ru> References: <20231221141638.19774-1-d.grigorev@omp.ru> Precedence: bulk X-Mailing-List: ofono@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-ClientProxiedBy: msexch01.omp.ru (10.188.4.12) To msexch01.omp.ru (10.188.4.12) X-KSE-ServerInfo: msexch01.omp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 6.1.0, Database issued on: 12/21/2023 14:23:47 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 182278 [Dec 21 2023] X-KSE-AntiSpam-Info: Version: 6.1.0.3 X-KSE-AntiSpam-Info: Envelope from: d.grigorev@omp.ru X-KSE-AntiSpam-Info: LuaCore: 7 0.3.7 6d6bf5bd8eea7373134f756a2fd73e9456bb7d1a X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;109.73.39.18:7.1.2;127.0.0.199:7.1.2;omp.ru:7.1.1;spb1wst017.omp.ru:7.1.1 X-KSE-AntiSpam-Info: ApMailHostAddress: 109.73.39.18 X-KSE-AntiSpam-Info: Rate: 0 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dmarc=temperror header.from=omp.ru;spf=temperror smtp.mailfrom=omp.ru;dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 12/21/2023 14:28:00 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 12/21/2023 10:52:00 AM X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit This addresses CVE-2023-4234. --- src/smsutil.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/smsutil.c b/src/smsutil.c index e9551b0d..6edf9ee6 100644 --- a/src/smsutil.c +++ b/src/smsutil.c @@ -942,10 +942,16 @@ static gboolean decode_submit_report(const unsigned char *pdu, int len, return FALSE; if (out->type == SMS_TYPE_SUBMIT_REPORT_ERROR) { + if (expected > (int) sizeof(out->submit_err_report.ud)) + return FALSE; + out->submit_err_report.udl = udl; memcpy(out->submit_err_report.ud, pdu + offset, expected); } else { + if (expected > (int) sizeof(out->submit_ack_report.ud)) + return FALSE; + out->submit_ack_report.udl = udl; memcpy(out->submit_ack_report.ud, pdu + offset, expected); -- 2.17.1