CVE-2021-32626 is a heap-based buffer overflow vulnerability affecting Redis versions 2.6 through 6.2.5, 6.0.15, and 5.0.13, specifically impacting its Lua scripting functionality. Specially crafted Lua scripts can cause heap corruption, potentially leading to remote code execution. With a CVSS score of 8.8 (High), this vulnerability is easily exploitable over the network with low privileges and no user interaction, allowing for high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, patches are available in Redis versions 6.2.6, 6.0.16, and 5.0.14, and workarounds exist by restricting EVAL/EVALSHA commands.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.6, < 5.0.14CPE matchmatch criteria | cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | ||
>= 6.0.0, < 6.0.16CPE matchmatch criteria | cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | ||
>= 6.2.0, < 6.2.6CPE matchmatch criteria | cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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