Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2017-9798 |
CWE-ID | CWE-416 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
Apache HTTP Server Server applications / Web servers |
Vendor | Apache Foundation |
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU8504
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2017-9798
CWE-ID:
CWE-416 - Use After Free
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to use-after-free error when processing HTTP OPTIONS requests in server/core.c, when limits are configured in .htaccess or httpd.conf configuration files. A remote unauthenticated attacker can read portions of memory through HTTP OPTIONS requests and gain access to potentially sensitive data.
The vulnerability is dubbed Optionsbleed.
MitigationUpdate to version 2.4.28.
http://www.apache.org/dist/httpd/CHANGES_2.4.28
Apache HTTP Server: 2.2.0 - 2.4.27
http://svn.apache.org/viewvc?view=revision&revision=1807655
http://github.com/hannob/optionsbleed
http://openwall.com/lists/oss-security/2017/09/18/2
http://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory....
http://www.apache.org/dist/httpd/CHANGES_2.4.28
Can this vulnerability be exploited remotely?
How the attacker can exploit this vulnerability?
Is there known malware, which exploits this vulnerability?