Vulmon
Amazon Linux 2 Security Advisory: ALASREDIS6-2023-004
Advisory Release Date: 2023-08-21 20:59 Pacific
Advisory Updated Date: 2023-09-25 22:02 Pacific
Severity:
Important
Issue Overview:
Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible. (CVE-2021-32765)
Affected Packages:
hiredis
Issue Correction:
Run yum update hiredis to update your system.
New Packages:
aarch64:
hiredis-0.13.3-17.amzn2.aarch64
hiredis-devel-0.13.3-17.amzn2.aarch64
hiredis-debuginfo-0.13.3-17.amzn2.aarch64
src:
hiredis-0.13.3-17.amzn2.src
x86_64:
hiredis-0.13.3-17.amzn2.x86_64
hiredis-devel-0.13.3-17.amzn2.x86_64
hiredis-debuginfo-0.13.3-17.amzn2.x86_64