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ettercap: patch CVE-2026-3603

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Details: https://nvd.nist.gov/vuln/detail/CVE-2026-3606

Pick the commit that is marked to solve the related Github
issue[1]. Its commit message also references the CVE ID explicitly.

[1]: https://github.com/Ettercap/ettercap/issues/1297

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Gyorgy Sarvari
2026-03-11 09:49:05 +01:00
committed by Anuj Mittal
parent d7546078a9
commit 51be807682
2 changed files with 51 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-networking/recipes-support/ettercap/ettercap/CVE-2026-3606.patch
+48
View File
@@ -0,0 +1,48 @@
From 9b281e30a1e7fec481af7e07b40a00cd9edf1cf8 Mon Sep 17 00:00:00 2001
From: Alexander Koeppe <alexander@koeppe.rocks>
Date: Sun, 8 Mar 2026 17:57:39 +0100
Subject: [PATCH] Fix heap-out-of-bounds read issue in etterfilter
(CVE-2026-3606)
CVE: CVE-2026-3606
Upstream-Status: Backport [https://github.com/Ettercap/ettercap/commit/41c312d4be6f6067968a275bf66b2abd2a0ba385]
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
include/ec.h | 6 ++++++
utils/etterfilter/ef_output.c | 4 ++--
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/ec.h b/include/ec.h
index 4e363b0a..66da146e 100644
--- a/include/ec.h
+++ b/include/ec.h
@@ -81,6 +81,12 @@
ON_ERROR(x, NULL, "virtual memory exhausted"); \
} while(0)
+#define SAFE_RECALLOC(x, s) do { \
+ x = realloc(x, s); \
+ ON_ERROR(x, NULL, "virtual memory exhausted"); \
+ memset(x, 0, s); \
+} while(0)
+
#define SAFE_STRDUP(x, s) do{ \
x = strdup(s); \
ON_ERROR(x, NULL, "virtual memory exhausted"); \
diff --git a/utils/etterfilter/ef_output.c b/utils/etterfilter/ef_output.c
index 2530e599..2f49177e 100644
--- a/utils/etterfilter/ef_output.c
+++ b/utils/etterfilter/ef_output.c
@@ -150,10 +150,10 @@ static size_t create_data_segment(u_char** data, struct filter_header *fh, struc
static size_t add_data_segment(u_char **data, size_t base, u_char **string, size_t slen)
{
/* make room for the new string */
- SAFE_REALLOC(*data, base + slen + 1);
+ SAFE_RECALLOC(*data, base + slen + 1);
/* copy the string, NULL separated */
- memcpy(*data + base, *string, slen + 1);
+ memcpy(*data + base, *string, slen);
/*
* change the pointer to the new string location
meta-networking/recipes-support/ettercap/ettercap_0.8.3.1.bb
+3 -1
View File
@@ -22,7 +22,9 @@ RDEPENDS:${PN} += "bash ethtool libgcc"
SRC_URI = "gitsm://github.com/Ettercap/ettercap;branch=master;protocol=https \
file://0001-sslstrip-Enhance-the-libcurl-version-check-to-consid.patch \
file://0002-allow-build-with-cmake-4.patch"
file://0002-allow-build-with-cmake-4.patch \
file://CVE-2026-3606.patch \
"
SRCREV = "7281fbddb7da7478beb1d21e3cb105fff3778b31"