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authorRichard Purdie <richard.purdie@linuxfoundation.org>2021-09-06 13:49:26 +0100
committerSteve Sakoman <steve@sakoman.com>2021-09-10 05:49:28 -1000
commitb939b005b06be58a276d565f755ee2d8f3e5dfc1 (patch)
tree16cac772817dddb781b55f502e71bf9e0aec8708
parent4cebabf1007762872510c5065a2a718a89687734 (diff)
downloadopenembedded-core-contrib-b939b005b06be58a276d565f755ee2d8f3e5dfc1.tar.gz
flex: Add CVE-2019-6293 to exclusions for checks
CVE is effectively disputed - yes there is stack exhaustion but no bug and it is building the parser, not running it, effectively similar to a compiler ICE. Upstream no plans to address and there is no security issue. https://github.com/westes/flex/issues/414 Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit 0cae5d7a24bedf6784781b62cbb3795a44bab4d1) Signed-off-by: Steve Sakoman <steve@sakoman.com>
-rw-r--r--meta/conf/distro/include/cve-extra-exclusions.inc4
-rw-r--r--meta/recipes-devtools/flex/flex_2.6.4.bb5
2 files changed, 5 insertions, 4 deletions
diff --git a/meta/conf/distro/include/cve-extra-exclusions.inc b/meta/conf/distro/include/cve-extra-exclusions.inc
index cf07acce1d..a6f52b5de7 100644
--- a/meta/conf/distro/include/cve-extra-exclusions.inc
+++ b/meta/conf/distro/include/cve-extra-exclusions.inc
@@ -61,10 +61,6 @@ CVE_CHECK_WHITELIST += "CVE-2020-29509 CVE-2020-29511"
# There was a proposed patch https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg06098.html
# however qemu maintainers are sure the patch is incorrect and should not be applied.
-# flex:flex-native https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6293
-# Upstream bug, still open: https://github.com/westes/flex/issues/414
-# Causes memory exhaustion so potential DoS but no buffer overflow, low priority
-
# wget https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-31879
# https://mail.gnu.org/archive/html/bug-wget/2021-02/msg00002.html
# No response upstream as of 2021/5/12
diff --git a/meta/recipes-devtools/flex/flex_2.6.4.bb b/meta/recipes-devtools/flex/flex_2.6.4.bb
index 1d43d2228a..50d3bf8de1 100644
--- a/meta/recipes-devtools/flex/flex_2.6.4.bb
+++ b/meta/recipes-devtools/flex/flex_2.6.4.bb
@@ -26,6 +26,11 @@ SRC_URI[sha256sum] = "e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c4
UPSTREAM_CHECK_URI = "https://github.com/westes/flex/releases"
UPSTREAM_CHECK_REGEX = "flex-(?P<pver>\d+(\.\d+)+)\.tar"
+# Disputed - yes there is stack exhaustion but no bug and it is building the
+# parser, not running it, effectively similar to a compiler ICE. Upstream no plans to address
+# https://github.com/westes/flex/issues/414
+CVE_CHECK_WHITELIST += "CVE-2019-6293"
+
inherit autotools gettext texinfo ptest
M4 = "${bindir}/m4"