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CVE
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CVE-2011-4362Date: (C)2011-12-24   (M)2018-02-19


Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score  : CVSS Score  : 5.0
Exploit Score: Exploit Score: 10.0
Impact Score : Impact Score : 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: Access Vector: NETWORK
Attack Complexity: Access Complexity: LOW
Privileges Required: Authentication: NONE
User Interaction: Confidentiality: NONE
Scope: Integrity: NONE
Confidentiality: Availability: PARTIAL
Integrity:  
Availability:  
  





Reference:
SECTRACK-1026359
EXPLOIT-DB-18295
http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html
SECUNIA-47260
DSA-2368
http://www.openwall.com/lists/oss-security/2011/11/29/8
http://www.openwall.com/lists/oss-security/2011/11/29/13
http://blog.pi3.com.pl/?p=277
http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt
http://redmine.lighttpd.net/issues/2370
https://bugzilla.redhat.com/show_bug.cgi?id=758624
lighttpd-base64-dos(71536)

CPE    25
cpe:/a:lighttpd:lighttpd:1.3.16
cpe:/a:lighttpd:lighttpd:1.4.25
cpe:/a:lighttpd:lighttpd:1.4.20
cpe:/a:lighttpd:lighttpd:1.4.24
...
CWE    1
CWE-189
OVAL    3
oval:org.secpod.oval:def:103928
oval:org.secpod.oval:def:103931
oval:org.secpod.oval:def:600694

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