On 7/17/21 11:09 AM, Randy MacLeod wrote:
> On 2021-07-17 9:50 a.m., akuster808 wrote:
>>
>> On 7/16/21 11:47 AM, Tony Tascioglu wrote:
>>> This patch backports the fix for CVE-2021-29477.
>>>
>>> CVE: CVE-2021-29477
>>> Upstream-Status: Backport
>>> [https://github.com/redis/redis/commit/f0c5f920d0f88bd8aa376a2c05af4902789d1ef9]
>>>
>> Thanks for the fixes. Any reason why updating to the latest stable 6.2.4
>> is not an option?
>> https://raw.githubusercontent.com/redis/redis/6.2/00-RELEASENOTES
>
> This commit adds a public function:
>
>    1916:void redactClientCommandArgument(client *c, int argc);
> in:
> https://github.com/redis/redis/commit/875a1f07d821dc5abe737b064018a27bbc7175d2
>
>
> probably not a show stopper but it does affect the API in server.h.
>
> I didn't check the rest of the commit carefully but we really need an
> API/ABI
> checker. I'm not sure how redis clients usually interact with the
> server, are you?
>
> It would be nice if this site were up to date:
>    https://abi-laboratory.pro/?view=timeline&l=hiredis
>
> I guess Tony could try the tools that the site points to if
> you like Armin.

Thanks for the info. Patches in this case are appropriate.

- Armin
>
> ../Randy
>
>
>> - Armin
>>> 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"
>>>  
>>> 
>>>
>

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