1. CVE-Search
  2. CVE-2018-11796
ID CVE-2018-11796
Summary In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.
References
Vulnerable Configurations
  • cpe:2.3:a:apache:tika:0.1:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.2:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.3:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.4:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.5:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.6:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.7:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.8:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.9:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.9:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:0.10:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:0.10:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.0:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.1:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.2:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.3:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.4:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.5:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.5:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.6:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.6:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.7:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.7:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.8:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.8:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.9:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.9:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.10:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.10:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.11:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.11:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.12:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.12:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.13:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.13:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.14:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.14:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.15:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.15:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.16:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.16:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.17:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.17:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.18:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.18:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:tika:1.19:*:*:*:*:*:*:*
    cpe:2.3:a:apache:tika:1.19:*:*:*:*:*:*:*
CVSS
Base: 5.0 (as of 03-09-2019 - 18:15)
Impact:
Exploitability:
CWE CWE-611
CAPEC
  • XML External Entities Blowup
    This attack takes advantage of the entity replacement property of XML where the value of the replacement is a URI. A well-crafted XML document could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:N/I:N/A:P
redhat via4
advisories
rhsa
id RHSA-2019:3892
refmap via4
bid 105585
confirm
Last major update 03-09-2019 - 18:15
Published 09-10-2018 - 22:29
Last modified 03-09-2019 - 18:15
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