1.2

CVE-2011-4415

Exploit

The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the "len +=" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.

Data is provided by the National Vulnerability Database (NVD)
Apache ≫ HTTP Server Version2.0
Apache ≫ HTTP Server Version2.0.9
Apache ≫ HTTP Server Version2.0.28
Apache ≫ HTTP Server Version2.0.28 Updatebeta
Apache ≫ HTTP Server Version2.0.32
Apache ≫ HTTP Server Version2.0.32 Updatebeta
Apache ≫ HTTP Server Version2.0.34 Updatebeta
Apache ≫ HTTP Server Version2.0.35
Apache ≫ HTTP Server Version2.0.36
Apache ≫ HTTP Server Version2.0.37
Apache ≫ HTTP Server Version2.0.38
Apache ≫ HTTP Server Version2.0.39
Apache ≫ HTTP Server Version2.0.40
Apache ≫ HTTP Server Version2.0.41
Apache ≫ HTTP Server Version2.0.42
Apache ≫ HTTP Server Version2.0.43
Apache ≫ HTTP Server Version2.0.44
Apache ≫ HTTP Server Version2.0.45
Apache ≫ HTTP Server Version2.0.46
Apache ≫ HTTP Server Version2.0.47
Apache ≫ HTTP Server Version2.0.48
Apache ≫ HTTP Server Version2.0.49
Apache ≫ HTTP Server Version2.0.50
Apache ≫ HTTP Server Version2.0.51
Apache ≫ HTTP Server Version2.0.52
Apache ≫ HTTP Server Version2.0.53
Apache ≫ HTTP Server Version2.0.54
Apache ≫ HTTP Server Version2.0.55
Apache ≫ HTTP Server Version2.0.56
Apache ≫ HTTP Server Version2.0.57
Apache ≫ HTTP Server Version2.0.58
Apache ≫ HTTP Server Version2.0.59
Apache ≫ HTTP Server Version2.0.60
Apache ≫ HTTP Server Version2.0.61
Apache ≫ HTTP Server Version2.0.63
Apache ≫ HTTP Server Version2.0.64
Apache ≫ HTTP Server Version2.2.0
Apache ≫ HTTP Server Version2.2.1
Apache ≫ HTTP Server Version2.2.2
Apache ≫ HTTP Server Version2.2.3
Apache ≫ HTTP Server Version2.2.4
Apache ≫ HTTP Server Version2.2.6
Apache ≫ HTTP Server Version2.2.8
Apache ≫ HTTP Server Version2.2.9
Apache ≫ HTTP Server Version2.2.10
Apache ≫ HTTP Server Version2.2.11
Apache ≫ HTTP Server Version2.2.12
Apache ≫ HTTP Server Version2.2.13
Apache ≫ HTTP Server Version2.2.14
Apache ≫ HTTP Server Version2.2.15
Apache ≫ HTTP Server Version2.2.16
Apache ≫ HTTP Server Version2.2.18
Apache ≫ HTTP Server Version2.2.19
Apache ≫ HTTP Server Version2.2.20
Apache ≫ HTTP Server Version2.2.21
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.67% 0.705
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 1.2 1.9 2.9
AV:L/AC:H/Au:N/C:N/I:N/A:P
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.