CVE-2018-11218
CriticalPublic exploitredis - security update
Published Jul 7, 2021 · Updated Aug 7, 2026 · Also known as ALPINE-CVE-2018-11218, DEBIAN-CVE-2018-11218, DLA-1396-1, DSA-4230-1, UBUNTU-CVE-2018-11218
Key Facts
Patch immediately- CVE-2018-11218 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Communications Operations Monitor (Oracle), Openstack (Redhat), Redis (Redislabs) and 2 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 59% probability of exploitation in the next 30 days.
- Fixed versions are available, including Redis 0:3.0.6-4.el7ost, Redis 2:2.8.17-1+deb8u6, Redis 2:2.8.4-2ubuntu0.2.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
59%
Higher than 99.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2018-11218 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Memory Corruption was discovered in the cmsgpack library in the Lua subsystem in Redis before 3.2.12, 4.x before 4.0.10, and 5.x before 5.0 RC2 because of stack-based buffer overflows.
Affected Products
35 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Communications Operations MonitorOracle | 3.4, 4.0 | n/a |
| OpenstackRedhat | 10, 13 | n/a |
| RedisRedislabs | 5.0-rc1 | 3.2.12 |
| Debian LinuxDebian | 9.0 | n/a |
| rh-redis32-redisredhat | See advisory | 0:3.2.13-1.el6 |
Patched Releases
Redis
0:3.0.6-4.el7ost, 2:2.8.17-1+deb8u6, 2:2.8.4-2ubuntu0.2, 2:3.0.6-1ubuntu0.2, 3:3.2.6-3+deb9u1, 3.2.12-r0, 4.0.10-1.ph1, 4.0.10-1.ph2, 4.0.10-15.1, 4.0.10-r0, 5:4.0.10-1, 5:4.0.9-1ubuntu0.1, 6.0.8-1.3.1, 6.2.5-1.2, NA, 3.2.12
rh-redis32-redis
0:3.2.13-1.el6, 0:3.2.13-1.el7
Timeline
Publicly disclosed
Jul 7, 2021
Last updated
Aug 7, 2026
Weakness Type
- CWE-122 Heap-based Buffer Overflow
- CWE-787 Out-of-bounds Write
References
- advisoryRHSA-2019:0052
- advisoryRHSA-2019:0094
- advisoryhttps://bugzilla.suse.com/1002351
- advisoryhttps://bugzilla.suse.com/1047218
- advisoryhttps://bugzilla.suse.com/1061967
FAQ
Common Questions.
Memory Corruption was discovered in the cmsgpack library in the Lua subsystem in Redis before 3.2.12, 4.x before 4.0.10, and 5.x before 5.0 RC2 because of stack-based buffer overflows.
Affected: Communications Operations Monitor (Oracle) versions 3.4, 4.0; Openstack (Redhat) versions 10, 13; Redis (Redislabs) versions 5.0-rc1, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Redis 0:3.0.6-4.el7ost, Redis 2:2.8.17-1+deb8u6, Redis 2:2.8.4-2ubuntu0.2.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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