squid: patch CVE-2025-59362

Details: https://nvd.nist.gov/vuln/detail/CVE-2025-59362

Pick the PR content that's referenced in the nvd report.

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>

2 files changed, 52 insertions, 0 deletions

diff --git a/meta-networking/recipes-daemons/squid/files/CVE-2025-59362.patch b/meta-networking/recipes-daemons/squid/files/CVE-2025-59362.patch
new file mode 100644
index 0000000000..1d50cb31e1
--- /dev/null
+++ b/meta-networking/recipes-daemons/squid/files/CVE-2025-59362.patch
@@ -0,0 +1,51 @@
+From 4b9784928c87225605fd223b6fa0e5b42d039359 Mon Sep 17 00:00:00 2001
+From: Alex Rousskov <rousskov@measurement-factory.com>
+Date: Sat, 30 Aug 2025 06:49:36 +0000
+Subject: [PATCH] Fix ASN.1 encoding of long SNMP OIDs (#2149)
+
+CVE: CVE-2025-59362
+Upstream-Status: Backport [https://github.com/squid-cache/squid/commit/0d89165ee6da10e6fa50c44998b3cd16d59400e9]
+---
+ lib/snmplib/asn1.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/lib/snmplib/asn1.c b/lib/snmplib/asn1.c
+index 8a4e471..0bb1f0b 100644
+--- a/lib/snmplib/asn1.c
++++ b/lib/snmplib/asn1.c
+@@ -771,6 +771,7 @@ asn_build_objid(u_char * data, int *datalength,
+      * lastbyte ::= 0 7bitvalue
+      */
+     u_char buf[MAX_OID_LEN];
++    u_char *bufEnd = buf + sizeof(buf);
+     u_char *bp = buf;
+     oid *op = objid;
+     int asnlength;
+@@ -789,6 +790,10 @@ asn_build_objid(u_char * data, int *datalength,
+     while (objidlength-- > 0) {
+         subid = *op++;
+         if (subid < 127) {  /* off by one? */
++            if (bp >= bufEnd) {
++                snmp_set_api_error(SNMPERR_ASN_ENCODE);
++                return (NULL);
++            }
+             *bp++ = subid;
+         } else {
+             mask = 0x7F;    /* handle subid == 0 case */
+@@ -806,8 +811,16 @@ asn_build_objid(u_char * data, int *datalength,
+                 /* fix a mask that got truncated above */
+                 if (mask == 0x1E00000)
+                     mask = 0xFE00000;
++                if (bp >= bufEnd) {
++                    snmp_set_api_error(SNMPERR_ASN_ENCODE);
++                    return (NULL);
++                }
+                 *bp++ = (u_char) (((subid & mask) >> bits) | ASN_BIT8);
+             }
++            if (bp >= bufEnd) {
++                snmp_set_api_error(SNMPERR_ASN_ENCODE);
++                return (NULL);
++            }
+             *bp++ = (u_char) (subid & mask);
+         }
+     }
diff --git a/meta-networking/recipes-daemons/squid/squid_4.15.bb b/meta-networking/recipes-daemons/squid/squid_4.15.bb
index 2c33d45bbf..ae3b66c7af 100644
--- a/meta-networking/recipes-daemons/squid/squid_4.15.bb
+++ b/meta-networking/recipes-daemons/squid/squid_4.15.bb
@@ -37,6 +37,7 @@ SRC_URI = "http://www.squid-cache.org/Versions/v${MAJ_VER}/${BPN}-${PV}.tar.bz2
            file://CVE-2022-41317.patch \
            file://CVE-2022-41318.patch \
            file://CVE-2023-46724.patch \
+           file://CVE-2025-59362.patch \
            "
 
 SRC_URI:remove:toolchain-clang = "file://0001-configure-Check-for-Wno-error-format-truncation-comp.patch"