This patch backports the fix for CVE-2021-29477. CVE: CVE-2021-29477 Upstream-Status: Backport [https://github.com/redis/redis/commit/f0c5f920d0f88bd8aa376a2c05af4902789d1ef9]
An integer overflow bug in Redis version 6.0 or newer could be exploited using the STRALGO LCS command to corrupt the heap and potentially result with remote code execution. Signed-off-by: Tony Tascioglu <[email protected]> --- .../redis/redis/fix-CVE-2021-29477.patch | 35 +++++++++++++++++++ meta-oe/recipes-extended/redis/redis_6.2.2.bb | 1 + 2 files changed, 36 insertions(+) create mode 100644 meta-oe/recipes-extended/redis/redis/fix-CVE-2021-29477.patch diff --git a/meta-oe/recipes-extended/redis/redis/fix-CVE-2021-29477.patch b/meta-oe/recipes-extended/redis/redis/fix-CVE-2021-29477.patch new file mode 100644 index 000000000..a5e5a1ba5 --- /dev/null +++ b/meta-oe/recipes-extended/redis/redis/fix-CVE-2021-29477.patch @@ -0,0 +1,35 @@ +From f0c5f920d0f88bd8aa376a2c05af4902789d1ef9 Mon Sep 17 00:00:00 2001 +From: Oran Agra <[email protected]> +Date: Mon, 3 May 2021 08:32:31 +0300 +Subject: [PATCH] Fix integer overflow in STRALGO LCS (CVE-2021-29477) + +An integer overflow bug in Redis version 6.0 or newer could be exploited using +the STRALGO LCS command to corrupt the heap and potentially result with remote +code execution. + +CVE: CVE-2021-29477 +Upstream-Status: Backport +[https://github.com/redis/redis/commit/f0c5f920d0f88bd8aa376a2c05af4902789d1ef9] + +Signed-off-by: Tony Tascioglu <[email protected]> + +--- + src/t_string.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/t_string.c b/src/t_string.c +index 9228c5ed0..db6f7042e 100644 +--- a/src/t_string.c ++++ b/src/t_string.c +@@ -805,7 +805,7 @@ void stralgoLCS(client *c) { + /* Setup an uint32_t array to store at LCS[i,j] the length of the + * LCS A0..i-1, B0..j-1. Note that we have a linear array here, so + * we index it as LCS[j+(blen+1)*j] */ +- uint32_t *lcs = zmalloc((alen+1)*(blen+1)*sizeof(uint32_t)); ++ uint32_t *lcs = zmalloc((size_t)(alen+1)*(blen+1)*sizeof(uint32_t)); + #define LCS(A,B) lcs[(B)+((A)*(blen+1))] + + /* Start building the LCS table. */ +-- +2.32.0 + diff --git a/meta-oe/recipes-extended/redis/redis_6.2.2.bb b/meta-oe/recipes-extended/redis/redis_6.2.2.bb index 65b525709..e89bb50f1 100644 --- a/meta-oe/recipes-extended/redis/redis_6.2.2.bb +++ b/meta-oe/recipes-extended/redis/redis_6.2.2.bb @@ -16,6 +16,7 @@ SRC_URI = "http://download.redis.io/releases/${BP}.tar.gz \ file://0001-src-Do-not-reset-FINAL_LIBS.patch \ file://GNU_SOURCE.patch \ file://0006-Define-correct-gregs-for-RISCV32.patch \ + file://fix-CVE-2021-29477.patch \ " SRC_URI[sha256sum] = "7a260bb74860f1b88c3d5942bf8ba60ca59f121c6dce42d3017bed6add0b9535" -- 2.31.1
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