CVE-2021-4249

HIGH
Published Dec 18, 20223y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Dec 18, 2022 3y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-404

Affected Products 1

VendorProductVersionRange
haskellxml-conduit* <1.9.1.0

References 4

  • github.com https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea
    PatchThird Party Advisory
  • github.com https://github.com/snoyberg/xml/pull/161
    PatchThird Party Advisory
  • hackage.haskell.org https://hackage.haskell.org/package/xml-conduit-1.9.1.0
    Release NotesVendor Advisory
  • vuldb.com https://vuldb.com/?id.216204
    Third Party Advisory

Remediation

  • github.com https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea
    PatchThird Party Advisory
  • github.com https://github.com/snoyberg/xml/pull/161
    PatchThird Party Advisory