medium
6.5
CWE
20 617
Advisory Published
CVE Published
Updated

CVE-2023-28856: `HINCRBYFLOAT` can be used to crash a redis-server process

First published: Mon Apr 17 2023(Updated: )

Redis is vulnerable to a denial of service, caused by improper input validation. By sending a specially crafted HINCRBYFLOAT command, a local authenticated attacker could exploit this vulnerability to cause the redis-server process to crash.

Credit: security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
Redis Redis<6.0.19
Redis Redis>=6.2.0<6.2.12
Redis Redis>=7.0.0<7.0.11
Debian Debian Linux=10.0
Fedoraproject Fedora=36
Fedoraproject Fedora=37
Fedoraproject Fedora=38
IBM Planning Analytics<=2.0
ubuntu/redis<5:4.0.9-1ubuntu0.2+
5:4.0.9-1ubuntu0.2+
ubuntu/redis<5:7.0.11-1
5:7.0.11-1
ubuntu/redis<5:5.0.7-2ubuntu0.1+
5:5.0.7-2ubuntu0.1+
ubuntu/redis<5:6.0.16-1ubuntu1+
5:6.0.16-1ubuntu1+
ubuntu/redis<2:2.8.4-2ubuntu0.2+
2:2.8.4-2ubuntu0.2+
ubuntu/redis<2:3.0.6-1ubuntu0.4+
2:3.0.6-1ubuntu0.4+
redhat/redis<7.0.11
7.0.11
redhat/redis<6.2.12
6.2.12
redhat/redis<6.0.19
6.0.19
debian/redis<=5:5.0.14-1+deb10u2<=5:6.0.16-1+deb11u2
5:5.0.14-1+deb10u5
5:7.0.15-1~deb12u1
5:7.0.15-1

Remedy

https://github.com/redis/redis/commit/bc7fe41e5857a0854d524e2a63a028e9394d2a5c

Remedy

https://github.com/redis/redis/pull/11149

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-28856?

    CVE-2023-28856 is a vulnerability found in Redis that allows authenticated users to use the HINCRBYFLOAT command to create an invalid hash field that will crash Redis on access.

  • What is the severity of CVE-2023-28856?

    CVE-2023-28856 has a severity rating of 6.5, which is classified as medium.

  • How can I exploit the CVE-2023-28856 vulnerability?

    To exploit CVE-2023-28856, an attacker needs to be an authenticated user and use the HINCRBYFLOAT command to create an invalid hash field that will crash Redis on access.

  • How can I fix CVE-2023-28856?

    To fix CVE-2023-28856, update Redis to version 7.0.11, 6.2.12, or 6.0.19.

  • Where can I find more information about CVE-2023-28856?

    You can find more information about CVE-2023-28856 in the reference links: https://github.com/redis/redis/releases/tag/7.0.11, https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2187526, https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2187527

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