CVE-2019-11923
HIGHCVSS 7.5/10EPSS 1.45%
Last modified
CVE-2019-11923 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Mcrouter prior to v0.41.0, the deprecated ASCII parser would allocate a buffer to a user-specified length with no maximum length enforced, allowing for resource exhaustion or denial of service.. EPSS estimates a 1.45% chance of exploitation in the next 30 days.
Description
In Mcrouter prior to v0.41.0, the deprecated ASCII parser would allocate a buffer to a user-specified length with no maximum length enforced, allowing for resource exhaustion or denial of service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mcrouter | < 0.41.0 |
References
- https://github.com/facebook/mcrouter/commit/98ce6624cd2563cfdb5da3b2949d5e1e03867034Patch, Third Party Advisory
- https://github.com/facebook/mcrouter/releases/tag/v0.41.0-releaseRelease Notes, Vendor Advisory
- https://www.facebook.com/security/advisories/cve-2019-11923Vendor Advisory
- https://github.com/facebook/mcrouter/commit/98ce6624cd2563cfdb5da3b2949d5e1e03867034Patch, Third Party Advisory
- https://github.com/facebook/mcrouter/releases/tag/v0.41.0-releaseRelease Notes, Vendor Advisory
- https://www.facebook.com/security/advisories/cve-2019-11923Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-11923?
In Mcrouter prior to v0.41.0, the deprecated ASCII parser would allocate a buffer to a user-specified length with no maximum length enforced, allowing for resource exhaustion or denial of service.
How severe is CVE-2019-11923?
CVE-2019-11923 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.
How do I fix CVE-2019-11923?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2019
- CVE-2019-11899An unauthenticated attacker can achieve unauthorized access …7.5
- CVE-2019-1190An elevation of privilege vulnerability exists in the way th…7.8
- CVE-2019-1191Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
- CVE-2019-1192A security feature bypass vulnerability exists when Microsof…4.3
- CVE-2019-11921An out of bounds write is possible via a specially crafted p…
- CVE-2019-11922A race condition in the one-pass compression functions of Zs…
- CVE-2019-11924A peer could send empty handshake fragments containing only …
- CVE-2019-11925Insufficient boundary checks when processing the JPEG APP12 …
- CVE-2019-11926Insufficient boundary checks when processing M_SOFx markers …
- CVE-2019-11927An integer overflow in WhatsApp media parsing libraries allo…7.8
- CVE-2019-11928An input validation issue in WhatsApp Desktop versions prior…6.1
- CVE-2019-11929Insufficient boundary checks when formatting numbers in numb…9.8
Are you affected by CVE-2019-11923?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST