# CVE-2019-17533: libmatio4: Mat_VarReadNextInfo4 in mat4.c in MATIO 1.5.17 omits a certain '\0' character, leading to a heap-based buffer over-re...

CVE-2019-17533 is fixed in 2 products on 1 platform, first by libmatio4 1.5.11-1ubuntu0.1~esm1, released October 12, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-17533
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0169
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 12, 2019

## Description

Mat_VarReadNextInfo4 in mat4.c in MATIO 1.5.17 omits a certain '\0' character, leading to a heap-based buffer over-read in strdup_vprintf when uninitialized memory is accessed.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libmatio4 Ubuntu 18.04.6 LTS (bionic) | 1.5.11-1ubuntu0.1~esm1 | [libmatio4 1.5.11-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmatio4-1.5.11-1ubuntu0.1-esm1.md) | Oct 12, 2019 |
| Linux | libmatio9 Ubuntu 20.04 LTS (focal) | 1.5.17-3ubuntu0.1~esm1 | [libmatio9 1.5.17-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmatio9-1.5.17-3ubuntu0.1-esm1.md) | Oct 12, 2019 |

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