memcached version prior to 1.4.37 contains an Integer Overflow vulnerability in…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 fixed, 7 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
memcached version prior to 1.4.37 contains an Integer Overflow vulnerability in items.c:item_free() that can result in data corruption and deadlocks due to items existing in hash table being reused from free list. This attack appear to be exploitable via network connectivity to the memcached service. This vulnerability appears to have been fixed in 1.4.37 and later.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:* | before 1.4.37 | Vulnerable | Memcached |
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* | 17.10 | Vulnerable | Canonical |
| cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* | 10 | Vulnerable | Red Hat |
- cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:* Versions before 1.4.37 Vulnerable ·Memcached
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Versions 17.10 Vulnerable ·Canonical
- cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2018:2290 Released 2018-07-30 · Red Hat rating Moderatememcached security update
- Red Hat OpenStack Platform 10.0 memcached-1.4.39-2.el7ost
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | Affected | No fix planned: Will not fix |
| Red Hat Mobile Application Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 11 (Ocata) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 8 (Liberty) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 9 (Mitaka) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 10.0 | Fixed | RHSA-2018:2290 |
Not affected: 3 products
- Red Hat Enterprise Linux 8
- Red Hat OpenStack Platform 12 (Pike)
- Red Hat OpenStack Platform 13 (Queens)
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1000127
- 2026-10-03 Alias added: GHSA-xfxv-84p3-w8rg
References
Sources
- CVE-2018-1000127 · CVE Program
- CVE-2018-1000127 · NVD
- FIRST EPSS
- GHSA-xfxv-84p3-w8rg · GitHub Advisory Database · CC BY 4.0
- CVE-2018-1000127 · Red Hat security data · CC BY 4.0
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