# CVE-2021-4249: haskell-xml-conduit: A vulnerability was found in xml-conduit

CVE-2021-4249 is fixed in haskell-xml-conduit on 1 platform, first by DEBIAN-CVE-2021-4249, released December 18, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-4249
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0084
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 18, 2022

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | haskell-xml-conduit Debian 12.15 (bookworm) | 1.9.1.1-1 | [DEBIAN-CVE-2021-4249](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4249.md) | Dec 18, 2022 |
| Linux | haskell-xml-conduit Debian 13.5 (trixie) | 1.9.1.1-1 | [DEBIAN-CVE-2021-4249](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4249.md) | Dec 18, 2022 |
| Linux | haskell-xml-conduit Debian 14 | 1.9.1.1-1 | [DEBIAN-CVE-2021-4249](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4249.md) | Dec 18, 2022 |

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