# CVE-2015-8077: Integer overflow in n/a

> An integer overflow in Cyrus IMAP allows remote attackers to cause unspecified impacts via crafted urlfetch requests.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 3 Dec 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-gjf9-hv65-fr5w, UBUNTU-CVE-2015-8077

## What is CVE-2015-8077?

CVE-2015-8077 is a high-severity vulnerability in Opensuse Leap, published on 3 Dec 2015. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Integer overflow in the index_urlfetch function in imap/index.c in Cyrus IMAP 2.3.19, 2.4.18, and 2.5.6 allows remote attackers to have unspecified impact via vectors related to urlfetch range checks and the start_octet variable.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-8076.

Weakness: CWE-189

## Which versions are affected by CVE-2015-8077?

It affects 3 products.


Products: Cyrus Imap, Opensuse Leap, Opensuse Opensuse.

## How do I fix CVE-2015-8077?

Apply the vendor's patch.

## Is CVE-2015-8077 being exploited?

There is no known exploitation of CVE-2015-8077 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Leap

- [CVE-2019-18928](https://insights.sbomify.com/CVE-2019-18928/): Auth bypass in n/a (critical 9.8)
- [CVE-2017-14230](https://insights.sbomify.com/CVE-2017-14230/): Information disclosure in n/a (critical 9.1)
- [CVE-2021-33582](https://insights.sbomify.com/CVE-2021-33582/): Denial of service in n/a (high 7.5)
- [CVE-2015-8076](https://insights.sbomify.com/CVE-2015-8076/): Information disclosure in n/a (high 7.5)
- [CVE-2015-8078](https://insights.sbomify.com/CVE-2015-8078/): Integer overflow in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-8077 and fix it if it is affected.

What it is: CVE-2015-8077 is a high-severity vulnerability in Opensuse Leap, published on 3 Dec 2015. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2015-8077 in the wild and no public exploit code.

Affected product: Opensuse Leap. 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-2015-8077/ (Markdown: https://insights.sbomify.com/CVE-2015-8077/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-8077
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-8077
- OSV: https://osv.dev/vulnerability/CVE-2015-8077

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-8077/
Summaries are generated and may contain mistakes; the official description above is the record.