Buffer overflow in HAProxy



Published: 2016-06-30 | Updated: 2020-07-28
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-5360
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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HAProxy
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor HAProxy

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32279

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-5360

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown vectors.

Mitigation

Install update from vendor's website.

Vulnerable software versions

HAProxy: 1.6.0 - 1.6.5

External links

http://git.haproxy.org/?p=haproxy-1.6.git;a=commit;h=60f01f8c89e4fb2723d5a9f2046286e699567e0b
http://www.openwall.com/lists/oss-security/2016/06/09/5
http://www.openwall.com/lists/oss-security/2016/06/09/6
http://www.ubuntu.com/usn/USN-3011-1


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.



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