# CVE-2018-10689: blktrace: blktrace (aka Block IO Tracing) 1.2.0, as used with the Linux kernel and Android, has a buffer overflow in the dev_ma...

CVE-2018-10689 is fixed in blktrace on 1 platform by blktrace 1.1.0-2+deb9u1build0.18.04.1 (version 1.1.0-2+deb9u1build0.18.04.1), released May 3, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-10689
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0185
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 3, 2018

## Description

blktrace (aka Block IO Tracing) 1.2.0, as used with the Linux kernel and Android, has a buffer overflow in the dev_map_read function in btt/devmap.c because the device and devno arrays are too small, as demonstrated by an invalid free when using the btt program with a crafted file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | blktrace Ubuntu 18.04.6 LTS (bionic) | 1.1.0-2+deb9u1build0.18.04.1 | [blktrace 1.1.0-2+deb9u1build0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-blktrace-1.1.0-2-deb9u1build0.18.04.1.md) | May 3, 2018 |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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