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[AutoPR- Security] Patch unbound for CVE-2025-11411 [MEDIUM] #14918

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[AutoPR- Security] Patch unbound for CVE-2025-11411 [MEDIUM] #14918

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42 changes: 42 additions & 0 deletions SPECS/unbound/CVE-2025-11411.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,42 @@
From 49964b5384d34d45ae88c16161426881cf49134a Mon Sep 17 00:00:00 2001
From: Azure Linux Security Servicing Account
<[email protected]>
Date: Fri, 24 Oct 2025 06:21:51 +0000
Subject: [PATCH] Fix for CVE-2025-11411

Signed-off-by: Azure Linux Security Servicing Account <[email protected]>
Upstream-reference: https://nlnetlabs.nl/downloads/unbound/patch_CVE-2025-11411.diff
---
iterator/iter_scrub.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/iterator/iter_scrub.c b/iterator/iter_scrub.c
index 5f2e303..47dc40a 100644
--- a/iterator/iter_scrub.c
+++ b/iterator/iter_scrub.c
@@ -570,6 +570,22 @@ scrub_normalize(sldns_buffer* pkt, struct msg_parse* msg,
"RRset:", pkt, msg, prev, &rrset);
continue;
}
+ /* If the NS set is a promiscuous NS set, scrub that
+ * to remove potential for poisonous contents that
+ * affects other names in the same zone. Remove
+ * promiscuous NS sets in positive answers, that
+ * thus have records in the answer section. Nodata
+ * and nxdomain promiscuous NS sets have been removed
+ * already. Since the NS rrset is scrubbed, its
+ * address records are also not marked to be allowed
+ * and are removed later. */
+ if(FLAGS_GET_RCODE(msg->flags) == LDNS_RCODE_NOERROR &&
+ msg->an_rrsets != 0 &&
+ 1 /* env->cfg->iter_scrub_promiscuous */) {
+ remove_rrset("normalize: removing promiscuous "
+ "RRset:", pkt, msg, prev, &rrset);
+ continue;
+ }
if(nsset == NULL) {
nsset = rrset;
} else {
--
2.45.4

6 changes: 5 additions & 1 deletion SPECS/unbound/unbound.spec
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
Summary: unbound dns server
Name: unbound
Version: 1.19.1
Release: 4%{?dist}
Release: 5%{?dist}
License: BSD
Vendor: Microsoft Corporation
Distribution: Azure Linux
Expand All @@ -13,6 +13,7 @@ Patch0: CVE-2024-43168.patch
Patch1: CVE-2024-33655.patch
Patch2: CVE-2024-8508.patch
Patch3: CVE-2024-43167.patch
Patch4: CVE-2025-11411.patch
BuildRequires: expat-devel
BuildRequires: libevent-devel
BuildRequires: python3-devel
Expand Down Expand Up @@ -100,6 +101,9 @@ useradd -r -g unbound -d %{_sysconfdir}/unbound -s /sbin/nologin \
%{_mandir}/*

%changelog
* Fri Oct 24 2025 Azure Linux Security Servicing Account <[email protected]> - 1.19.1-5
- Patch for CVE-2025-11411

* Tue Oct 08 2024 Sam Meluch <[email protected]> - 1.19.1-4
- Add patches for CVE-2024-8508 and CVE-2024-43167

Expand Down
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