Backport patch to fix CVE-2026-42014. References: https://nvd.nist.gov/vuln/detail/CVE-2026-42014
Upstream fix: https://gitlab.com/gnutls/gnutls/-/commit/3957f136e2ed23caf176a594b54b3827f5cef701 Tested with ptest Signed-off-by: Jakub Szczudlo <[email protected]> --- .../gnutls/gnutls/CVE-2026-42014.patch | 60 +++++++++++++++++++ meta/recipes-support/gnutls/gnutls_3.8.12.bb | 1 + 2 files changed, 61 insertions(+) create mode 100644 meta/recipes-support/gnutls/gnutls/CVE-2026-42014.patch diff --git a/meta/recipes-support/gnutls/gnutls/CVE-2026-42014.patch b/meta/recipes-support/gnutls/gnutls/CVE-2026-42014.patch new file mode 100644 index 0000000000..776733829a --- /dev/null +++ b/meta/recipes-support/gnutls/gnutls/CVE-2026-42014.patch @@ -0,0 +1,60 @@ +From 3957f136e2ed23caf176a594b54b3827f5cef701 Mon Sep 17 00:00:00 2001 +From: Alexander Sosedkin <[email protected]> +Date: Wed, 18 Mar 2026 18:19:06 +0100 +Subject: [PATCH] pkcs11_write: fix UAF and leak in gnutls_pkcs11_token_set_pin + +Changing Security Officer PIN with gnutls_pkcs11_token_set_pin() with +oldpin == NULL for a token that lacks a protected authentication path +led to a use-after-free. + +Reported-by: Luigino Camastra and Joshua Rogers of AISLE Research Team +Fixes: #1766 +Fixes: #1809 +Fixes: CVE-2026-42014 +Fixes: GNUTLS-SA-2026-04-29-9 +CVSS: 4.0 Medium CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L +Signed-off-by: Alexander Sosedkin <[email protected]> + +CVE: CVE-2026-42014 +Upstream-Status: Backport [https://gitlab.com/gnutls/gnutls/-/commit/3957f136e2ed23caf176a594b54b3827f5cef701] + +Signed-off-by: Jakub Szczudlo <[email protected]> +--- +diff --git a/lib/pkcs11_write.c b/lib/pkcs11_write.c +index 64b85a2..1dff578 100644 +--- a/lib/pkcs11_write.c ++++ b/lib/pkcs11_write.c +@@ -1266,10 +1266,9 @@ int gnutls_pkcs11_token_set_pin(const char *token_url, const char *oldpin, + ses_flags = SESSION_WRITE | SESSION_LOGIN; + + ret = pkcs11_open_session(&sinfo, NULL, info, ses_flags); +- p11_kit_uri_free(info); +- + if (ret < 0) { + gnutls_assert(); ++ p11_kit_uri_free(info); + return ret; + } + +@@ -1290,9 +1289,11 @@ int gnutls_pkcs11_token_set_pin(const char *token_url, const char *oldpin, + oldpin_size = L(oldpin); + + if (!(sinfo.tinfo.flags & CKF_PROTECTED_AUTHENTICATION_PATH)) { +- if (newpin == NULL) +- return gnutls_assert_val( ++ if (newpin == NULL) { ++ ret = gnutls_assert_val( + GNUTLS_E_INVALID_REQUEST); ++ goto finish; ++ } + + if (oldpin == NULL) { + struct pin_info_st pin_info; +@@ -1324,6 +1325,7 @@ int gnutls_pkcs11_token_set_pin(const char *token_url, const char *oldpin, + ret = 0; + + finish: ++ p11_kit_uri_free(info); + pkcs11_close_session(&sinfo); + return ret; + } diff --git a/meta/recipes-support/gnutls/gnutls_3.8.12.bb b/meta/recipes-support/gnutls/gnutls_3.8.12.bb index 2f671c4886..b8f653d210 100644 --- a/meta/recipes-support/gnutls/gnutls_3.8.12.bb +++ b/meta/recipes-support/gnutls/gnutls_3.8.12.bb @@ -42,6 +42,7 @@ SRC_URI = "https://www.gnupg.org/ftp/gcrypt/gnutls/v${SHRT_VER}/gnutls-${PV}.tar file://CVE-2026-42012.patch \ file://CVE-2026-42013-pre1.patch \ file://CVE-2026-42013.patch \ + file://CVE-2026-42014.patch \ " SRC_URI[sha256sum] = "a7b341421bfd459acf7a374ca4af3b9e06608dcd7bd792b2bf470bea012b8e51" -- 2.34.1
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