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flex: Add CVE-2019-6293 to exclusions for checks

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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

(From OE-Core rev: b939b005b06be58a276d565f755ee2d8f3e5dfc1)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 0cae5d7a24bedf6784781b62cbb3795a44bab4d1)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2021-09-06 13:49:26 +01:00
parent 50ea49f3d9
commit 6aa55dd279
2 changed files with 5 additions and 4 deletions
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4
meta/conf/distro/include/cve-extra-exclusions.inc
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@@ -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

5
meta/recipes-devtools/flex/flex_2.6.4.bb
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@@ -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"