CVE-2021-4249

xml-conduit DOCTYPE Entity Expansion Parse.hs infinite loop

CVSS 4.3 MEDIUMEPSS 0.8%CWE-404

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.3EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 Dec 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected products

unspecified · xml-conduit

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References

https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea https://github.com/snoyberg/xml/pull/161 https://hackage.haskell.org/package/xml-conduit-1.9.1.0 https://vuldb.com/?id.216204