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d="scan'208";a="544130190" Received: from rcdn-l-core-03.cisco.com ([173.37.255.140]) by rcdn-iport-9.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 06 Nov 2026 09:21:25 +0000 Received: from sjc-ads-7857.cisco.com (sjc-ads-7857.cisco.com [10.30.222.144]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "ciscoit-managed-infra-smtp-auth.cisco.com", Issuer "Internal Private TLS SubCA" (verified OK)) by rcdn-l-core-03.cisco.com (Postfix) with ESMTPS id 893B9180001D1 for ; Fri, 6 Nov 2026 09:21:25 +0000 (GMT) Received: by sjc-ads-7857.cisco.com (Postfix, from userid 1887505) id 2E3C2CBEF5B; Fri, 6 Nov 2026 01:21:25 -0800 (PST) From: "Hetvi Thakar -X (hthakar - E INFOCHIPS PRIVATE LIMITED at Cisco)" To: openembedded-core@lists.openembedded.org Subject: [OE-core][blacksail][PATCH 3/3] lrzsz: fix CVE-2026-105842 Date: Fri, 6 Nov 2026 01:21:25 -0800 Message-Id: <20261106092125.2587191-3-hthakar@cisco.com> X-Mailer: git-send-email 2.35.6 In-Reply-To: <20261106092125.2587191-1-hthakar@cisco.com> References: <20261106092125.2587191-1-hthakar@cisco.com> MIME-Version: 1.0 X-Outbound-Client-TLS: VERIFIED;sjc-ads-7857.cisco.com [10.30.222.144];TLSv1.3;TLS_AES_256_GCM_SHA384;256;ciscoit-managed-infra-smtp-auth.cisco.com X-Outbound-SMTP-Client: 10.30.222.144, sjc-ads-7857.cisco.com X-Outbound-Node: rcdn-l-core-03.cisco.com List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by lin-tor-korg-lkml-alma10-1 with HTTPS for ; Fri, 06 Nov 2026 09:21:33 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/249624 From: Hetvi Thakar Overlong sender-controlled filenames can overflow the fixed-size Pathname buffer when copied with strcpy(), causing heap memory corruption. Backport upstream commit [1], which replaces the remaining fixed-size Pathname allocations and copies with strdup(). This allocates space for the complete filename and addresses the vulnerability described in [2]. [1] https://github.com/UweOhse/lrzsz/commit/f8caa7b1b1a3a1bb50cf08677b15be7b17c2956f [2] https://security-tracker.debian.org/tracker/CVE-2026-105842 Signed-off-by: Hetvi Thakar --- .../lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch | 56 +++++++++++++++++++ meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb | 1 + 2 files changed, 57 insertions(+) create mode 100644 meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch diff --git a/meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch b/meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch new file mode 100644 index 0000000000..08b5cbb429 --- /dev/null +++ b/meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch @@ -0,0 +1,56 @@ +From f8caa7b1b1a3a1bb50cf08677b15be7b17c2956f Mon Sep 17 00:00:00 2001 +From: Uwe Ohse at akiar +Date: Mon, 10 Aug 2026 18:40:36 +0200 +Subject: [PATCH] avoid buffer overflows by strdup instead of + malloc(PATH_MAX+...). + +CVE: CVE-2026-105842 +Upstream-Status: Backport [https://github.com/UweOhse/lrzsz/commit/f8caa7b1b1a3a1bb50cf08677b15be7b17c2956f] + +Backport Changes: +- Omitted NEWS because its 0.13.0 release-note hunk conflicts with the + 0.12.20 release history and is not needed for the security fix. + +Signed-off-by: Hetvi Thakar +--- + src/lrz.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/src/lrz.c b/src/lrz.c +index 168636e..e11f909 100644 +--- a/src/lrz.c ++++ b/src/lrz.c +@@ -743,11 +743,10 @@ wcreceive(int argc, char **argp) + if (Pathname) + free(Pathname); + errno=0; +- Pathname=malloc(PATH_MAX+1); ++ Pathname=strdup(*argp); + if (!Pathname) + error(1,0,_("out of memory")); + +- strcpy(Pathname, *argp); + checkpath(Pathname); + #ifdef ENABLE_SYSLOG + shortname=strrchr(*argp,'/'); +@@ -1288,15 +1287,16 @@ procheader(char *name, struct zm_fileinfo *zi) + return OK; /* dummy */ + if (Pathname) + free(Pathname); +- Pathname=malloc((PATH_MAX)*2); ++ ++ Pathname=strdup(name_static); + if (!Pathname) + error(1,0,_("out of memory")); +- strcpy(Pathname, name_static); + if (Verbose) { + /* overwrite the "waiting to receive" line */ + vstring("\r \r"); + vstringf(_("Receiving: %s\n"), name_static); + } ++ + checkpath(name_static); + if (Nflag) + { +-- +2.35.6 diff --git a/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb b/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb index ec98f69015..a6d1f62c61 100644 --- a/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb +++ b/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb @@ -23,6 +23,7 @@ SRC_URI = "https://www.ohse.de/uwe/releases/lrzsz-${PV}.tar.gz \ file://0001-lrzsz-convert-K-R-function-definitions-to-ANSI-C-pro.patch \ file://CVE-2026-105841.patch \ file://CVE-2026-105840.patch \ + file://CVE-2026-105842.patch \ " SRC_URI[sha256sum] = "c28b36b14bddb014d9e9c97c52459852f97bd405f89113f30bee45ed92728ff1"