# CVE-2014-8146: Memory corruption in n/a

> Remote attackers can trigger a heap-based buffer overflow in the ICU4C library via crafted text, potentially leading to arbitrary code execution or denial of service.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 25 May 2015
- **Updated:** 6 Aug 2024
- **Also known as:** CVE-2015-8146, DEBIAN-CVE-2014-8146, GHSA-5v3f-x3cw-9pfr, UBUNTU-CVE-2014-8146

## What is CVE-2014-8146?

CVE-2014-8146 is a high-severity memory corruption vulnerability in Apple Iphone Os, published on 25 May 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 does not properly track directionally isolated pieces of text, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly execute arbitrary code via crafted text.

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

## Which versions are affected by CVE-2014-8146?

It affects 5 products.


Products: Apple Iphone Os, Apple Itunes, Apple Mac Os X, Apple Watchos, Icu-Project International Components for Unicode.

## How do I fix CVE-2014-8146?

Upgrade to a fixed version.

## Is CVE-2014-8146 being exploited?

There is no known exploitation of CVE-2014-8146 in the wild and no public exploit code.

Public exploit code:

- ICU library 52 < 54 - Multiple Vulnerabilities (exploitdb)

## Other vulnerabilities in Apple Iphone Os

- [CVE-2021-30666](https://insights.sbomify.com/CVE-2021-30666/): Apple iOS WebKit Buffer Overflow (high 8.8, exploited in the wild)
- [CVE-2021-30761](https://insights.sbomify.com/CVE-2021-30761/): Apple iOS WebKit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2021-30762](https://insights.sbomify.com/CVE-2021-30762/): Apple iOS WebKit Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2016-4657](https://insights.sbomify.com/CVE-2016-4657/): Apple iOS Webkit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2019-7286](https://insights.sbomify.com/CVE-2019-7286/): Apple Multiple Products Memory Corruption (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-8146 and fix it if it is affected.

What it is: CVE-2014-8146 is a high-severity memory corruption vulnerability in Apple Iphone Os, published on 25 May 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2014-8146 in the wild and no public exploit code.

Affected product: Apple Iphone Os. 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-2014-8146/ (Markdown: https://insights.sbomify.com/CVE-2014-8146/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-8146
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-8146
- OSV: https://osv.dev/vulnerability/CVE-2014-8146

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-8146/
Summaries are generated and may contain mistakes; the official description above is the record.