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[176.157.204.145]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-499c35935f5sm61379865e9.2.2026.08.24.06.00.40 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 06:00:40 -0700 (PDT) From: Yoann Congal To: openembedded-core@lists.openembedded.org Subject: [OE-core][wrynose 05/19] libssh2: fix CVE-2026-66034 Date: Mon, 24 Aug 2026 14:59:47 +0200 Message-ID: <5a34f96f86229734521fe6f90038090d9d8630a7.1787576160.git.yoann.congal@smile.fr> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: 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 ; Mon, 24 Aug 2026 13:01:16 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/244116 From: Jaipaul Cheernam Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-66034 https://github.com/libssh2/libssh2/commit/a13bb6c773f0d55ad1628cede57e99804cd898d9 libssh2 ptest results (qemux86-64): before: PASSED: 1 FAILED: 0 SKIPPED: 0 after: PASSED: 1 FAILED: 0 SKIPPED: 0 Signed-off-by: Jaipaul Cheernam Signed-off-by: Fabien Thomas --- .../libssh2/libssh2/CVE-2026-66034.patch | 40 +++++++++++++++++++ .../recipes-support/libssh2/libssh2_1.11.1.bb | 1 + 2 files changed, 41 insertions(+) create mode 100644 meta/recipes-support/libssh2/libssh2/CVE-2026-66034.patch diff --git a/meta/recipes-support/libssh2/libssh2/CVE-2026-66034.patch b/meta/recipes-support/libssh2/libssh2/CVE-2026-66034.patch new file mode 100644 index 00000000000..906356baf28 --- /dev/null +++ b/meta/recipes-support/libssh2/libssh2/CVE-2026-66034.patch @@ -0,0 +1,40 @@ +From 16720054e0b3f02e36f31dd04add534d73d4a18d Mon Sep 17 00:00:00 2001 +From: Viktor Szakats +Date: Sat, 4 Jul 2026 11:19:49 +0200 +Subject: [PATCH] publickey: fix potential OOB read in + `libssh2_publickey_list_fetch()` + +Reported-by: Vladimir Eli Tokarev +Fixes GHSA-w6g9-cpfp-22gc + +Closes #2202 + +Backport adaptations: +- The upstream fix uses ssh2_err() which is not available in libssh2 + 1.11.1. Replace with the equivalent _libssh2_error() call. + +CVE: CVE-2026-66034 +Upstream-Status: Backport [https://github.com/libssh2/libssh2/commit/a13bb6c773f0d55ad1628cede57e99804cd898d9] +Signed-off-by: Jaipaul Cheernam +--- + src/publickey.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/src/publickey.c b/src/publickey.c +index 9c9fa618..f3776d2d 100644 +--- a/src/publickey.c ++++ b/src/publickey.c +@@ -988,6 +988,13 @@ libssh2_publickey_list_fetch(LIBSSH2_PUBLICKEY * pkey, unsigned long *num_keys, + } + + if(comment_len) { ++ if(pkey->listFetch_s + comment_len > ++ pkey->listFetch_data + pkey->listFetch_data_len) { ++ _libssh2_error(session, LIBSSH2_ERROR_BUFFER_TOO_SMALL, ++ "ListFetch data too short"); ++ goto err_exit; ++ } ++ + list[keys].num_attrs = 1; + list[keys].attrs = + LIBSSH2_ALLOC(session, diff --git a/meta/recipes-support/libssh2/libssh2_1.11.1.bb b/meta/recipes-support/libssh2/libssh2_1.11.1.bb index de435a836db..7d3063d9304 100644 --- a/meta/recipes-support/libssh2/libssh2_1.11.1.bb +++ b/meta/recipes-support/libssh2/libssh2_1.11.1.bb @@ -18,6 +18,7 @@ SRC_URI = "http://www.libssh2.org/download/${BP}.tar.gz \ file://CVE-2025-15661-3.patch \ file://CVE-2026-66032.patch \ file://CVE-2026-66033.patch \ + file://CVE-2026-66034.patch \ " SRC_URI[sha256sum] = "d9ec76cbe34db98eec3539fe2c899d26b0c837cb3eb466a56b0f109cabf658f7"