From: Sana Kazi <sana.k...@kpit.com> Added patch for CVE-2019-12900 as backport from upstream. Fixes out of bound access discovered while fuzzying karchive.
Tested by: sana.k...@kpit.com Signed-off-by: Saloni Jain <saloni.j...@kpit.com> Signed-off-by: Armin Kuster <akuster...@gmail.com> --- .../bzip2/bzip2-1.0.6/CVE-2019-12900.patch | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 meta/recipes-extended/bzip2/bzip2-1.0.6/CVE-2019-12900.patch diff --git a/meta/recipes-extended/bzip2/bzip2-1.0.6/CVE-2019-12900.patch b/meta/recipes-extended/bzip2/bzip2-1.0.6/CVE-2019-12900.patch new file mode 100644 index 0000000000..9859d9d1a2 --- /dev/null +++ b/meta/recipes-extended/bzip2/bzip2-1.0.6/CVE-2019-12900.patch @@ -0,0 +1,36 @@ +From 74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc Mon Sep 17 00:00:00 2001 +From: Albert Astals Cid <aa...@kde.org> +Date: Tue, 28 May 2019 19:35:18 +0200 +Subject: [PATCH] Make sure nSelectors is not out of range + +nSelectors is used in a loop from 0 to nSelectors to access selectorMtf +which is +UChar selectorMtf[BZ_MAX_SELECTORS]; +so if nSelectors is bigger than BZ_MAX_SELECTORS it'll do an invalid memory +access +Fixes out of bounds access discovered while fuzzying karchive + +Link: https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc.patch + +Upstream-Status: Backport +CVE: CVE-2019-12900.patch +Signed-off-by: Saloni Jain <saloni.j...@kpit.com> +--- + decompress.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/decompress.c b/decompress.c +index ab6a624..f3db91d 100644 +--- a/decompress.c ++++ b/decompress.c +@@ -287,7 +287,7 @@ Int32 BZ2_decompress ( DState* s ) + GET_BITS(BZ_X_SELECTOR_1, nGroups, 3); + if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR); + GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15); +- if (nSelectors < 1) RETURN(BZ_DATA_ERROR); ++ if (nSelectors < 1 || nSelectors > BZ_MAX_SELECTORS) RETURN(BZ_DATA_ERROR); + for (i = 0; i < nSelectors; i++) { + j = 0; + while (True) { +-- +2.22.0 -- 2.17.1 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
