# CVE-2018-10689: Memory corruption in n/a

> A buffer overflow in blktrace allows attackers to execute arbitrary code or cause denial of service via a crafted file.

- **Severity:** Medium 5.5 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 3 May 2018
- **Updated:** 5 Aug 2024
- **Also known as:** AZL-6328, DEBIAN-CVE-2018-10689, GHSA-pr22-23wp-22hm, RHSA-2019:2162, SUSE-SU-2019:0919-1, SUSE-SU-2020:2942-1, UBUNTU-CVE-2018-10689, openSUSE-SU-2019:1224-1

## What is CVE-2018-10689?

CVE-2018-10689 is a medium-severity memory corruption vulnerability in n/a, published on 3 May 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2018-10689?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `blktrace` | Red Hat:enterprise_linux:7::client | All versions | 0:1.0.5-9.el7 |
| `blktrace-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 0:1.0.5-9.el7 |
| `blktrace` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.0.5-9.el7 |
| `blktrace-debuginfo` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.0.5-9.el7 |
| `blktrace` | Red Hat:enterprise_linux:7::server | All versions | 0:1.0.5-9.el7 |
| `blktrace-debuginfo` | Red Hat:enterprise_linux:7::server | All versions | 0:1.0.5-9.el7 |
| `blktrace` | Red Hat:enterprise_linux:7::workstation | All versions | 0:1.0.5-9.el7 |
| `blktrace-debuginfo` | Red Hat:enterprise_linux:7::workstation | All versions | 0:1.0.5-9.el7 |
| `blktrace` | SUSE:Linux Enterprise Module for Development Tools 15 | All versions | 1.1.0+git.20170126-3.3.28 |
| `blktrace` | SUSE:Linux Enterprise Server 12 SP5 | All versions | 1.0.5-8.5.74 |
| `blktrace` | SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 1.0.5-8.5.74 |
| `blktrace` | openSUSE:Leap 15.0 | All versions | 1.1.0+git.20170126-lp150.2.3.1 |

Products: Blktrace Project Blktrace.

## How do I fix CVE-2018-10689?

Apply the vendor's patch.

## Is CVE-2018-10689 being exploited?

There is no known exploitation of CVE-2018-10689 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-10689 and fix it if it is affected.

What it is: CVE-2018-10689 is a medium-severity memory corruption vulnerability in n/a, published on 3 May 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-10689 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-10689/ (Markdown: https://insights.sbomify.com/CVE-2018-10689/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-10689
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-10689
- OSV: https://osv.dev/vulnerability/CVE-2018-10689

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-10689/
Summaries are generated and may contain mistakes; the official description above is the record.