Signed-off-by: Sakib Sajal <sakib.sa...@windriver.com> --- meta/recipes-devtools/qemu/qemu.inc | 1 + .../qemu/qemu/CVE-2021-3593.patch | 40 +++++++++++++++++++ 2 files changed, 41 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2021-3593.patch
diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 6c00bf274b..6b544a4344 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -73,6 +73,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://CVE-2021-3592_1.patch \ file://CVE-2021-3592_2.patch \ file://CVE-2021-3592_3.patch \ + file://CVE-2021-3593.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3593.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3593.patch new file mode 100644 index 0000000000..dd14c240a8 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3593.patch @@ -0,0 +1,40 @@ +From fe99634066e1074aaf55e83b576385877d7e4bcc Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lur...@redhat.com> +Date: Fri, 4 Jun 2021 16:32:55 +0400 +Subject: [PATCH 04/12] upd6: check udp6_input buffer size +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Fixes: CVE-2021-3593 +Fixes: https://gitlab.freedesktop.org/slirp/libslirp/-/issues/45 + +Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com> + +Upstream-Status: Backport [de71c15de66ba9350bf62c45b05f8fbff166517b] +CVE: CVE-2021-3593 + +Signed-off-by: Sakib Sajal <sakib.sa...@windriver.com> +--- + slirp/src/udp6.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/slirp/src/udp6.c b/slirp/src/udp6.c +index 6f9486bbc..8c490e4d1 100644 +--- a/slirp/src/udp6.c ++++ b/slirp/src/udp6.c +@@ -28,7 +28,10 @@ void udp6_input(struct mbuf *m) + ip = mtod(m, struct ip6 *); + m->m_len -= iphlen; + m->m_data += iphlen; +- uh = mtod(m, struct udphdr *); ++ uh = mtod_check(m, sizeof(struct udphdr)); ++ if (uh == NULL) { ++ goto bad; ++ } + m->m_len += iphlen; + m->m_data -= iphlen; + +-- +2.31.1 + -- 2.33.0
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