From 120d1241d8301089ed05f865f03b4915c843e936 Mon Sep 17 00:00:00 2001 From: Matt Weber Date: Wed, 21 Apr 2021 15:42:30 -0500 Subject: [PATCH] package/flex: ignore CVE-2019-6293 https://security-tracker.debian.org/tracker/CVE-2019-6293 https://github.com/NixOS/nixpkgs/issues/55386#issuecomment-683792976 "But this bug does not cause stack overflows in the generated code. The function and file referred to in the bug (mark_beginning_as_normal in nfa.c) are part of the flex code generator, not part of the generated code. If flex crashes before generating any code, that can hardly be a vulnerability. If flex does not crash, the generated code is fine (or perhaps subject to other unreported bugs, who knows, but the NFA has been generated correctly)." Upstream has chosen to not provide a fix https://github.com/westes/flex/issues/414 Signed-off-by: Matthew Weber [yann.morin.1998@free.fr: use actual upstream URL] Signed-off-by: Yann E. MORIN --- package/flex/flex.mk | 3 +++ 1 file changed, 3 insertions(+) diff --git a/package/flex/flex.mk b/package/flex/flex.mk index 2d00969662..85da5ddae8 100644 --- a/package/flex/flex.mk +++ b/package/flex/flex.mk @@ -10,6 +10,9 @@ FLEX_INSTALL_STAGING = YES FLEX_LICENSE = FLEX FLEX_LICENSE_FILES = COPYING FLEX_CPE_ID_VENDOR = flex_project +# bug does not cause stack overflows in the generated code and has been +# noted upstream as a bug in the code generator +FLEX_IGNORE_CVES = CVE-2019-6293 FLEX_DEPENDENCIES = $(TARGET_NLS_DEPENDENCIES) host-m4 HOST_FLEX_DEPENDENCIES = host-m4 -- 2.30.2