NULL pointer dereference in lighttpd

1) NULL pointer dereference

EUVDB-ID: #VU32410

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-2007-1870

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a request to a file whose mtime is 0, which results in a NULL pointer dereference.

Mitigation

Update to version 1.4.14.

Vulnerable software versions

lighttpd: 1.4.1 - 1.4.13

External links

http://secunia.com/advisories/24886
http://secunia.com/advisories/24947
http://secunia.com/advisories/24995
http://secunia.com/advisories/25166
http://secunia.com/advisories/25613
http://security.gentoo.org/glsa/glsa-200705-07.xml
http://www.debian.org/security/2007/dsa-1303
http://www.lighttpd.net/assets/2007/4/13/lighttpd_sa2007_02.txt
http://www.novell.com/linux/security/advisories/2007_007_suse.html
http://www.securityfocus.com/archive/1/466464/30/6900/threaded
http://www.securityfocus.com/bid/23515
http://www.vupen.com/english/advisories/2007/1399
http://exchange.xforce.ibmcloud.com/vulnerabilities/33678
http://issues.rpath.com/browse/RPL-1218

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.