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Fencer Vulns
high 7.7

CVE-2020-14147 json

An integer overflow in the getnum function in lua_struct.c in Redis before 6.0.3 allows context-dependent attackers with permission to run…

published 2020-06-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-6304

cvss
7.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

An integer overflow in the getnum function in lua_struct.c in Redis before 6.0.3 allows context-dependent attackers with permission to run Lua code in a Redis session to cause a denial of service (memory corruption and application crash) or possibly bypass intended sandbox restrictions via a large number, which triggers a stack-based buffer overflow. NOTE: this issue exists because of a CVE-2015-8080 regression.

Patch / fix

  • redislabs redis 5.0.9, 6.0.3
  • redis Debian 14, Debian 13, Debian 12 5:6.0.0-1

debian advisories DEBIAN-CVE-2020-14147

  • redis Package Hub 15 SP1, Package Hub 12, openSUSE Leap 15.1 4.0.14-bp151.3.6.1

opensuse advisories openSUSE-SU-2020:1035-1

  • redis Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 6.0.3-r0

alpine advisories ALPINE-CVE-2020-14147

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • redis CBL-Mariner 2.0 5.0.5-7

azure linux advisories AZL-6842

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-14147 updated cvss 7.7

redis: integer overflow in the getnum function in lua_struct.c could lead to a DoS

  • Red Hat Enterprise Linux 8 redis
    affected: workaround, no fix planned “There is no known mitigation for this issue, the flaw can only be resolved by applying updates.”
  • Red Hat OpenStack Platform 10 (Newton) redis Red Hat OpenStack Platform 13 (Queens) redis
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.08% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.