# CVE-2017-8871: libcroco3: The cr_parser_parse_selector_core function in cr-parser.c in libcroco 0.6.12 allows remote attackers to cause a denia...

CVE-2017-8871 is fixed in 2 products on 1 platform, first by libcroco-tools 0.6.12-2ubuntu0.1~esm1, released May 12, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2017-8871
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.1294
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 11, 2017

## Description

The cr_parser_parse_selector_core function in cr-parser.c in libcroco 0.6.12 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a crafted CSS file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libcroco-tools Ubuntu 18.04.6 LTS (bionic) | 0.6.12-2ubuntu0.1~esm1 | [libcroco-tools 0.6.12-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcroco-tools-0.6.12-2ubuntu0.1-esm1.md) | May 12, 2020 |
| Linux | libcroco-tools Ubuntu 20.04 LTS (focal) | 0.6.13-1ubuntu0.1 | [libcroco-tools 0.6.13-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcroco-tools-0.6.13-1ubuntu0.1.md) | May 12, 2020 |
| Linux | libcroco3 Ubuntu 18.04.6 LTS (bionic) | 0.6.12-2ubuntu0.1~esm1 | [libcroco3 0.6.12-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcroco3-0.6.12-2ubuntu0.1-esm1.md) | May 12, 2020 |
| Linux | libcroco3 Ubuntu 20.04 LTS (focal) | 0.6.13-1ubuntu0.1 | [libcroco3 0.6.13-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcroco3-0.6.13-1ubuntu0.1.md) | May 12, 2020 |

---

Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo