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tinyproxy: patch CVE-2026-3945

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Details: https://nvd.nist.gov/vuln/detail/CVE-2026-3945

Backport the patches which are references by the NVD avisory.

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
This commit is contained in:
Gyorgy Sarvari
2026-04-06 17:50:43 +02:00
committed by Khem Raj
parent d8c66c4428
commit c789281ecf
3 changed files with 62 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch Normal file
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@@ -0,0 +1,29 @@
From 245946bb789c8fc0e4758c344f735a5d53827dce Mon Sep 17 00:00:00 2001
From: rofl0r <rofl0r@users.noreply.github.com>
Date: Thu, 12 Mar 2026 14:26:24 +0000
Subject: [PATCH] reqs: check negative length values when reading chunked data
this could lead to a DoS when a legitimate client reads from an
attacker-controlled web server.
closes #597
CVE: CVE-2026-3945
Upstream-Status: Backport [https://github.com/tinyproxy/tinyproxy/commit/969852ccdb1d19d7ed302f0e1d324661be641e0a]
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
src/reqs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/reqs.c b/src/reqs.c
index a562c68..94ce767 100644
--- a/src/reqs.c
+++ b/src/reqs.c
@@ -613,6 +613,7 @@ static int pull_client_data_chunked (struct conn_s *connptr) {
}
chunklen = strtol (buffer, (char**)0, 16);
+ if (chunklen < 0) goto ERROR_EXIT;
if (pull_client_data (connptr, chunklen+2, 0) < 0)
goto ERROR_EXIT;

31
meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch Normal file
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@@ -0,0 +1,31 @@
From 8f12872b8e50fe22be0a65ead260ebbedde905cd Mon Sep 17 00:00:00 2001
From: rofl0r <rofl0r@users.noreply.github.com>
Date: Sun, 29 Mar 2026 16:48:54 +0200
Subject: [PATCH] reqs: prevent potential int overflow when parsing chunked
data (#603)
follow-up to 969852ccdb1d19d7ed302f0e1d324661be641e0a
closes #602
CVE: CVE-2026-3945
Upstream-Status: Backport [https://github.com/tinyproxy/tinyproxy/commit/bb7edc4778041b3bc8ad7fca448b67d98039cc7d]
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
src/reqs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/reqs.c b/src/reqs.c
index 94ce767..7aacfd3 100644
--- a/src/reqs.c
+++ b/src/reqs.c
@@ -613,7 +613,8 @@ static int pull_client_data_chunked (struct conn_s *connptr) {
}
chunklen = strtol (buffer, (char**)0, 16);
- if (chunklen < 0) goto ERROR_EXIT;
+ /* prevent negative or huge values causing overflow */
+ if (chunklen < 0 || chunklen > 0x0fffffff) goto ERROR_EXIT;
if (pull_client_data (connptr, chunklen+2, 0) < 0)
goto ERROR_EXIT;

2
meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
View File

@@ -7,6 +7,8 @@ SRC_URI = "https://github.com/${BPN}/${BPN}/releases/download/${PV}/${BP}.tar.gz
file://tinyproxy.service \
file://tinyproxy.conf \
file://run-ptest \
file://CVE-2026-3945-1.patch \
file://CVE-2026-3945-2.patch \
"
SRC_URI[sha256sum] = "9bcf46db1a2375ff3e3d27a41982f1efec4706cce8899ff9f33323a8218f7592"