CVE-2019-12854
HIGHCVSS 7.5/10EPSS 11.71%
Last modified
CVE-2019-12854 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory. On systems with memory access protections, this can cause the CGI process to terminate unexpectedly, resulting in a denial of service for all clients using it.. EPSS estimates a 11.71% chance of exploitation in the next 30 days.
Description
Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory. On systems with memory access protections, this can cause the CGI process to terminate unexpectedly, resulting in a denial of service for all clients using it.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | >= 4.0, <= 4.7 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 29 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 19.04 |
| Canonical | Ubuntu Linux | 19.10 |
| Opensuse | Leap | 15.0 |
| Opensuse | Leap | 15.1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.htmlMailing List, Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2019_1.txtVendor Advisory
- https://bugs.squid-cache.org/show_bug.cgi?id=4937Vendor Advisory
- https://seclists.org/bugtraq/2019/Aug/42Mailing List, Third Party Advisory
- https://usn.ubuntu.com/4213-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4507Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.htmlMailing List, Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2019_1.txtVendor Advisory
- https://bugs.squid-cache.org/show_bug.cgi?id=4937Vendor Advisory
- https://seclists.org/bugtraq/2019/Aug/42Mailing List, Third Party Advisory
- https://usn.ubuntu.com/4213-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4507Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-12854?
Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory. On systems with memory access protections, this can cause the CGI process to terminate unexpectedly, resulting in a denial of service for all clients using it.
How severe is CVE-2019-12854?
CVE-2019-12854 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 11.71% probability of exploitation in the next 30 days.
How do I fix CVE-2019-12854?
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.
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Are you affected by CVE-2019-12854?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST