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CVE-2017-12425 Detail

Description

An issue was discovered in Varnish HTTP Cache 4.0.1 through 4.0.4, 4.1.0 through 4.1.7, 5.0.0, and 5.1.0 through 5.1.2. A wrong if statement in the varnishd source code means that particular invalid requests from the client can trigger an assert, related to an Integer Overflow. This causes the varnishd worker process to abort and restart, losing the cached contents in the process. An attacker can therefore crash the varnishd worker process on demand and effectively keep it from serving content - a Denial-of-Service attack. The specific source-code filename containing the incorrect statement varies across releases.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.debian.org/security/2017/dsa-3924
https://bugzilla.redhat.com/show_bug.cgi?id=1477222 Issue Tracking  Third Party Advisory 
https://bugzilla.suse.com/show_bug.cgi?id=1051917 Issue Tracking  Third Party Advisory 
https://github.com/varnishcache/varnish-cache/issues/2379 Third Party Advisory 
https://lists.debian.org/debian-security-announce/2017/msg00186.html Mailing List  Third Party Advisory 
https://www.varnish-cache.org/security/VSV00001.html#vsv00001 Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

57 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-12425
NVD Published Date:
08/04/2017
NVD Last Modified:
08/02/2022
Source:
MITRE