From d6d723665d5fabfa83ea7c88f688e372668e271c Mon Sep 17 00:00:00 2001 From: Chen Qi Date: Fri, 2 Nov 2018 12:42:43 +0800 Subject: systemd: fix CVE-2018-15688 Backport patch to fix the following CVE. CVE: CVE-2018-15688 (From OE-Core rev: 13591d7224393dc0ae529a03cdf74aceb3540ce9) Signed-off-by: Chen Qi Signed-off-by: Richard Purdie --- ...sure-we-have-enough-space-for-the-DHCP6-o.patch | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 meta/recipes-core/systemd/systemd/0001-dhcp6-make-sure-we-have-enough-space-for-the-DHCP6-o.patch (limited to 'meta/recipes-core/systemd/systemd') diff --git a/meta/recipes-core/systemd/systemd/0001-dhcp6-make-sure-we-have-enough-space-for-the-DHCP6-o.patch b/meta/recipes-core/systemd/systemd/0001-dhcp6-make-sure-we-have-enough-space-for-the-DHCP6-o.patch new file mode 100644 index 0000000000..0c912f25df --- /dev/null +++ b/meta/recipes-core/systemd/systemd/0001-dhcp6-make-sure-we-have-enough-space-for-the-DHCP6-o.patch @@ -0,0 +1,39 @@ +From a2622b8398ba026faf481f5eddeb53231d9de4a7 Mon Sep 17 00:00:00 2001 +From: Lennart Poettering +Date: Fri, 19 Oct 2018 12:12:33 +0200 +Subject: [PATCH] dhcp6: make sure we have enough space for the DHCP6 option + header + +Fixes a vulnerability originally discovered by Felix Wilhelm from +Google. + +CVE-2018-15688 +LP: #1795921 +https://bugzilla.redhat.com/show_bug.cgi?id=1639067 + +(cherry picked from commit 4dac5eaba4e419b29c97da38a8b1f82336c2c892) + +CVE: CVE-2018-15688 +Upstream-Status: Backport + +Signed-off-by: Chen Qi +--- + src/libsystemd-network/dhcp6-option.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/libsystemd-network/dhcp6-option.c b/src/libsystemd-network/dhcp6-option.c +index c4b402b..dcbaad0 100644 +--- a/src/libsystemd-network/dhcp6-option.c ++++ b/src/libsystemd-network/dhcp6-option.c +@@ -103,7 +103,7 @@ int dhcp6_option_append_ia(uint8_t **buf, size_t *buflen, DHCP6IA *ia) { + return -EINVAL; + } + +- if (*buflen < len) ++ if (*buflen < offsetof(DHCP6Option, data) + len) + return -ENOBUFS; + + ia_hdr = *buf; +-- +2.7.4 + -- cgit v1.2.3-54-g00ecf