diff mbox series

[meta-networking,1/2] tinyproxy: patch CVE-2026-3945

Message ID 20260406155044.3662500-1-skandigraun@gmail.com
State New
Headers show
Series [meta-networking,1/2] tinyproxy: patch CVE-2026-3945 | expand

Commit Message

Gyorgy Sarvari April 6, 2026, 3:50 p.m. UTC 
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>
---
 .../tinyproxy/tinyproxy/CVE-2026-3945-1.patch | 29 +++++++++++++++++
 .../tinyproxy/tinyproxy/CVE-2026-3945-2.patch | 31 +++++++++++++++++++
 .../tinyproxy/tinyproxy_1.11.3.bb             |  2 ++
 3 files changed, 62 insertions(+)
 create mode 100644 meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch
 create mode 100644 meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch

Comments

Khem Raj April 6, 2026, 4:45 p.m. UTC | #1 
On Mon, Apr 6, 2026 at 8:50 AM Gyorgy Sarvari via lists.openembedded.org
<skandigraun=gmail.com@lists.openembedded.org> wrote:

> 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>
> ---
>  .../tinyproxy/tinyproxy/CVE-2026-3945-1.patch | 29 +++++++++++++++++
>  .../tinyproxy/tinyproxy/CVE-2026-3945-2.patch | 31 +++++++++++++++++++
>  .../tinyproxy/tinyproxy_1.11.3.bb             |  2 ++
>  3 files changed, 62 insertions(+)
>  create mode 100644
> meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch
>  create mode 100644
> meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch
>
> diff --git
> a/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch
> b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch
> new file mode 100644
> index 0000000000..99c4ea705d
> --- /dev/null
> +++
> b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch
> @@ -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;
> diff --git
> a/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch
> b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch
> new file mode 100644
> index 0000000000..3da30b54eb
> --- /dev/null
> +++
> b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch
> @@ -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;
> diff --git a/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
> b/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
> index 745c55bc0d..56e3296066 100644
> --- a/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
> +++ b/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb


We have 1.11.2 in master branch, we should do the upgrade to 1.11.3 before
applying this patch.


>
> @@ -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"
>
> -=-=-=-=-=-=-=-=-=-=-=-
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> View/Reply Online (#126051):
> https://lists.openembedded.org/g/openembedded-devel/message/126051
> Mute This Topic: https://lists.openembedded.org/mt/118692463/1997914
> Group Owner: openembedded-devel+owner@lists.openembedded.org
> Unsubscribe: https://lists.openembedded.org/g/openembedded-devel/unsub [
> raj.khem@gmail.com]
> -=-=-=-=-=-=-=-=-=-=-=-
>
>
Gyorgy Sarvari April 6, 2026, 4:54 p.m. UTC | #2 
On 4/6/26 18:45, Khem Raj wrote:
> 
> 
> On Mon, Apr 6, 2026 at 8:50 AM Gyorgy Sarvari via lists.openembedded.org
> <http://lists.openembedded.org>
> <skandigraun=gmail.com@lists.openembedded.org
> <mailto:gmail.com@lists.openembedded.org>> wrote:
> 
>     Details: https://nvd.nist.gov/vuln/detail/CVE-2026-3945 <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
>     <mailto:skandigraun@gmail.com>>
>     ---
>      .../tinyproxy/tinyproxy/CVE-2026-3945-1.patch | 29 +++++++++++++++++
>      .../tinyproxy/tinyproxy/CVE-2026-3945-2.patch | 31 +++++++++++++++++++
>      .../tinyproxy/tinyproxy_1.11.3.bb <http://tinyproxy_1.11.3.bb>     
>            |  2 ++
>      3 files changed, 62 insertions(+)
>      create mode 100644 meta-networking/recipes-support/tinyproxy/
>     tinyproxy/CVE-2026-3945-1.patch
>      create mode 100644 meta-networking/recipes-support/tinyproxy/
>     tinyproxy/CVE-2026-3945-2.patch
> 
>     diff --git a/meta-networking/recipes-support/tinyproxy/tinyproxy/
>     CVE-2026-3945-1.patch b/meta-networking/recipes-support/tinyproxy/
>     tinyproxy/CVE-2026-3945-1.patch
>     new file mode 100644
>     index 0000000000..99c4ea705d
>     --- /dev/null
>     +++ b/meta-networking/recipes-support/tinyproxy/tinyproxy/
>     CVE-2026-3945-1.patch
>     @@ -0,0 +1,29 @@
>     +From 245946bb789c8fc0e4758c344f735a5d53827dce Mon Sep 17 00:00:00 2001
>     +From: rofl0r <rofl0r@users.noreply.github.com
>     <mailto: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 <https://github.com/
>     tinyproxy/tinyproxy/commit/969852ccdb1d19d7ed302f0e1d324661be641e0a>]
>     +Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com
>     <mailto: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;
>     diff --git a/meta-networking/recipes-support/tinyproxy/tinyproxy/
>     CVE-2026-3945-2.patch b/meta-networking/recipes-support/tinyproxy/
>     tinyproxy/CVE-2026-3945-2.patch
>     new file mode 100644
>     index 0000000000..3da30b54eb
>     --- /dev/null
>     +++ b/meta-networking/recipes-support/tinyproxy/tinyproxy/
>     CVE-2026-3945-2.patch
>     @@ -0,0 +1,31 @@
>     +From 8f12872b8e50fe22be0a65ead260ebbedde905cd Mon Sep 17 00:00:00 2001
>     +From: rofl0r <rofl0r@users.noreply.github.com
>     <mailto: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 <https://github.com/
>     tinyproxy/tinyproxy/commit/bb7edc4778041b3bc8ad7fca448b67d98039cc7d>]
>     +Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com
>     <mailto: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;
>     diff --git a/meta-networking/recipes-support/tinyproxy/
>     tinyproxy_1.11.3.bb <http://tinyproxy_1.11.3.bb> b/meta-networking/
>     recipes-support/tinyproxy/tinyproxy_1.11.3.bb <http://
>     tinyproxy_1.11.3.bb>
>     index 745c55bc0d..56e3296066 100644
>     --- a/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
>     <http://tinyproxy_1.11.3.bb>
>     +++ b/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
>     <http://tinyproxy_1.11.3.bb>
> 
> 
> We have 1.11.2 in master branch, we should do the upgrade to 1.11.3
> before applying this patch.


Yeah, *somebody* forgot to submit it along with this patch, even though
it was prepared...
Sorry for that, it should be floating around the ML now.
diff mbox series

Patch

diff --git a/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch
new file mode 100644
index 0000000000..99c4ea705d
--- /dev/null
+++ b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-1.patch
@@ -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;
diff --git a/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch
new file mode 100644
index 0000000000..3da30b54eb
--- /dev/null
+++ b/meta-networking/recipes-support/tinyproxy/tinyproxy/CVE-2026-3945-2.patch
@@ -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;
diff --git a/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb b/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
index 745c55bc0d..56e3296066 100644
--- a/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
+++ b/meta-networking/recipes-support/tinyproxy/tinyproxy_1.11.3.bb
@@ -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"