diff options
Diffstat (limited to 'meta/recipes-extended/bzip2/bzip2-1.0.6/CVE-2019-12900.patch')
| -rw-r--r-- | meta/recipes-extended/bzip2/bzip2-1.0.6/CVE-2019-12900.patch | 33 |
1 files changed, 33 insertions, 0 deletions
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..9841644881 --- /dev/null +++ b/meta/recipes-extended/bzip2/bzip2-1.0.6/CVE-2019-12900.patch @@ -0,0 +1,33 @@ +From 11e1fac27eb8a3076382200736874c78e09b75d6 Mon Sep 17 00:00:00 2001 +From: Albert Astals Cid <aacid@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 +CVE: CVE-2019-12900 +Upstream-Status: Backport +Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> + +--- + decompress.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/decompress.c b/decompress.c +index 311f566..b6e0a29 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) { |