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([203.211.104.195]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a0d22281f0sm2876420a91.1.2026.09.26.17.39.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 26 Sep 2026 17:39:31 -0700 (PDT) From: ankur.tyagi85@gmail.com To: openembedded-devel@lists.openembedded.org Cc: Ankur Tyagi Subject: [oe][meta-networking][wrynose][PATCH 2/11] unbound: patch CVE-2026-81642 Date: Sun, 27 Sep 2026 13:39:12 +1300 Message-ID: <20260927003921.746786-2-ankur.tyagi85@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260927003921.746786-1-ankur.tyagi85@gmail.com> References: <20260927003921.746786-1-ankur.tyagi85@gmail.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Sun, 27 Sep 2026 00:39:38 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-devel/message/130321 From: Ankur Tyagi Details: https://nvd.nist.gov/vuln/detail/cve-2026-81642 Signed-off-by: Ankur Tyagi --- .../unbound/unbound/CVE-2026-81642.patch | 30 +++++++++++++++++++ .../recipes-support/unbound/unbound_1.24.2.bb | 1 + 2 files changed, 31 insertions(+) create mode 100644 meta-networking/recipes-support/unbound/unbound/CVE-2026-81642.patch diff --git a/meta-networking/recipes-support/unbound/unbound/CVE-2026-81642.patch b/meta-networking/recipes-support/unbound/unbound/CVE-2026-81642.patch new file mode 100644 index 0000000000..9f77424a95 --- /dev/null +++ b/meta-networking/recipes-support/unbound/unbound/CVE-2026-81642.patch @@ -0,0 +1,30 @@ +From a774b2050a1543e87def9cba0e25dcdabffde526 Mon Sep 17 00:00:00 2001 +From: "W.C.A. Wijngaards" +Date: Wed, 16 Sep 2026 09:18:49 +0200 +Subject: [PATCH] - Fix CVE-2026-81642, Heap buffer overflow and possible + Remote Code Execution when digesting DNSKEY. Thanks to Yuqi Qiu and Xiang + Li from Nankai University, AOSP Lab for the report. + +(cherry picked from commit 8c2e0fd6cc5b6eaa618ac72227808824b4edee7c) + +CVE: CVE-2026-81642 +Upstream-Status: Backport [https://github.com/NLnetLabs/unbound/commit/8c2e0fd6cc5b6eaa618ac72227808824b4edee7c] + +Signed-off-by: Ankur Tyagi +--- + validator/val_sigcrypt.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/validator/val_sigcrypt.c b/validator/val_sigcrypt.c +index cde281870..b9bfe685c 100644 +--- a/validator/val_sigcrypt.c ++++ b/validator/val_sigcrypt.c +@@ -305,6 +305,8 @@ ds_create_dnskey_digest(struct module_env* env, + * digest = digest_algorithm( DNSKEY owner name | DNSKEY RDATA); + * DNSKEY RDATA = Flags | Protocol | Algorithm | Public Key. */ + sldns_buffer_clear(b); ++ if(!sldns_buffer_available(b, dnskey_rrset->rk.dname_len + dnskey_len-2)) ++ return 0; /* buffer too small */ + sldns_buffer_write(b, dnskey_rrset->rk.dname, + dnskey_rrset->rk.dname_len); + query_dname_tolower(sldns_buffer_begin(b)); diff --git a/meta-networking/recipes-support/unbound/unbound_1.24.2.bb b/meta-networking/recipes-support/unbound/unbound_1.24.2.bb index 0b59d7c9f9..c8d7c6cdab 100644 --- a/meta-networking/recipes-support/unbound/unbound_1.24.2.bb +++ b/meta-networking/recipes-support/unbound/unbound_1.24.2.bb @@ -44,6 +44,7 @@ SRC_URI = "git://github.com/NLnetLabs/unbound.git;protocol=https;branch=master;t file://CVE-2026-56416.patch \ file://CVE-2026-56444.patch \ file://CVE-2026-80225.patch \ + file://CVE-2026-81642.patch \ " SRCREV = "f6269baa605d31859f28770e01a24e3677e5f82c"