CVE-2016-5421

Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 10 Aug 2016, 14:00
Last modified:06 Aug 2024, 01:01

Vulnerability Summary

Overall Risk (default)
medium
33/100
CVSS Score
8.1 HIGH
v3.1 (nvd)
EPSS Score
1.09% LOW
1% probability -0.20%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Aug 2016, 14:00
Published
Vulnerability first disclosed
06 Aug 2024, 01:01
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 1.09%• Percentile: 78%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 14.04 | 16.04

  • debian•debian_linux

    8.0

  • fedoraproject•fedora

    23 | 24

  • haxx•libcurl

    ≤ 7.50.0

  • opensuse•leap

    42.1

  • opensuse•opensuse

    13.2

References (15)