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CVE-2021-4249

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Date: December 18, 2022

A vulnerability was found in xml-conduit. It has been classified as problematic. Affected is an unknown function of the file xml-conduit/src/Text/XML/Stream/Parse.hs of the component DOCTYPE Entity Expansion Handler. The manipulation leads to infinite loop. It is possible to launch the attack remotely. Upgrading to version 1.9.1.0 is able to address this issue. The name of the patch is 4be1021791dcdee8b164d239433a2043dc0939ea. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216204.

Language: HASKELL

Severity Score

Related Resources (7)

https://security-tracker.debian.org/tracker/CVE-2021-4249
https://vuldb.com/?id.216204
https://hackage.haskell.org/package/xml-conduit-1.9.1.0
https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea
https://github.com/snoyberg/xml/pull/161
https://nvd.nist.gov/vuln/detail/CVE-2021-4249
https://www.mend.io/vulnerability-database/CVE-2021-4249

Severity Score

Weakness Type (CWE)

Improper Resource Shutdown or Release

CWE-404

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

Top Fix

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Upgrade Version

Upgrade to version xml-conduit/1.9.1.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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