---
title: "CVE-2017-15298\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2017-15298?format=md
keywords: index, follow
---

# CVE-2017-15298

Publication date 14 October 2017

Last updated 25 August 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2017-15298?format=md#impact-score)

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## Description

Git through 2.14.2 mishandles layers of tree objects, which allows remote
attackers to cause a denial of service (memory consumption) via a crafted
repository, aka a Git bomb. This can also have an impact of disk
consumption; however, an affected process typically would not survive its
attempt to build the data structure in memory before writing to disk.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| git | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Ignored end of life |
| 17.04 zesty | Ignored end of life |
| 16.04 LTS xenial | Fixed 1:2.7.4-0ubuntu1.6 |
| 14.04 LTS trusty | Fixed 1:1.9.1-1ubuntu0.10 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2017-15298?format=md#patch-details)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| git | * Upstream:   [?id=a93](https://git.kernel.org/pub/scm/git/git.git/commit/?id=a937b37e76) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.5 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | Required |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | None |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15298)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-15298)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-15298)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-15298)

### Related Ubuntu Security Notices (USN)

+ [USN-3829-1](https://usn.ubuntu.com/USN-3829-1)
+ Git vulnerabilities
+ 27 November 2018

### Other references

* <https://kate.io/blog/git-bomb/>
* <https://github.com/Katee/git-bomb>
* <https://public-inbox.org/git/20171013123521.hop5hrfsyagu7znl@sigill.intra.peff.net/T/#m58c560c18f93476e23110a0656a8d525170d14a2>
* <https://www.cve.org/CVERecord?id=CVE-2017-15298>