Buffer overflow in Varnish Cache
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2013-4484 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Varnish Cache Server applications / IDS/IPS systems, Firewalls and proxy servers |
| Vendor | Varnish Software |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU32597
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2013-4484
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to perform service disruption.
Varnish before 3.0.5 allows remote attackers to cause a denial of service (child-process crash and temporary caching outage) via a GET request with trailing whitespace characters and no URI.
MitigationInstall update from vendor's website.
Vulnerable software versionsVarnish Cache: 3.0.0 - 3.0.4
External linkshttp://archives.neohapsis.com/archives/bugtraq/2013-10/0158.html
http://lists.opensuse.org/opensuse-updates/2013-11/msg00029.html
http://lists.opensuse.org/opensuse-updates/2013-11/msg00033.html
http://secunia.com/advisories/55452
http://secunia.com/advisories/55746
http://www.debian.org/security/2012/dsa-2814
http://www.openwall.com/lists/oss-security/2013/10/30/5
http://www.varnish-cache.org/trac/ticket/1367
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
