CVE-2016-5421

Publication date 3 August 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.1 · High

Score breakdown

Description

Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.

Read the notes from the security team

Status

Package Ubuntu Release Status
curl 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Fixed 7.47.0-1ubuntu2.1
14.04 LTS trusty
Fixed 7.35.0-1ubuntu2.8
12.04 LTS precise
Not affected

Notes

sbeattie

Affected versions: libcurl 7.32.0 to and including 7.50.0

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
curl

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.1 · High

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references

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