Out-of-bounds Read Affecting redis package, versions <6.2.5-r0
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Test your applications- Snyk ID SNYK-ALPINE314-REDIS-1533462
- published 26 Jul 2021
- disclosed 21 Jul 2021
How to fix?
Upgrade Alpine:3.14 redis to version 6.2.5-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream redis package and not the redis package as distributed by Alpine.
See How to fix? for Alpine:3.14 relevant fixed versions and status.
Redis is an in-memory database that persists on disk. A vulnerability involving out-of-bounds read and integer overflow to buffer overflow exists starting with version 2.2 and prior to versions 5.0.13, 6.0.15, and 6.2.5. On 32-bit systems, Redis *BIT* command are vulnerable to integer overflow that can potentially be exploited to corrupt the heap, leak arbitrary heap contents or trigger remote code execution. The vulnerability involves changing the default proto-max-bulk-len configuration parameter to a very large value and constructing specially crafted commands bit commands. This problem only affects Redis on 32-bit platforms, or compiled as a 32-bit binary. Redis versions 5.0.3m 6.0.15, and 6.2.5 contain patches for this issue. An additional workaround to mitigate the problem without patching the redis-serverexecutable is to prevent users from modifying theproto-max-bulk-len` configuration parameter. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.
References
- https://github.com/redis/redis/security/advisories/GHSA-8wxq-j7rp-g8wj
- https://security.netapp.com/advisory/ntap-20210827-0004/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6O7AUOROBYGP5IMGJPC5HZ3R2RB6GZ5X/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VGX7RRAWGXWXEAKJTQYSDSBO2BC3SAHD/
- https://lists.debian.org/debian-lts-announce/2021/07/msg00017.html
- https://lists.debian.org/debian-lts-announce/2021/08/msg00026.html
- https://security.gentoo.org/glsa/202209-17
- https://www.debian.org/security/2021/dsa-5001
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6O7AUOROBYGP5IMGJPC5HZ3R2RB6GZ5X/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGX7RRAWGXWXEAKJTQYSDSBO2BC3SAHD/