CVE-2016-8618

Advisory lineage Upstream: 0 Downstream: 12
Modified
Published: 31 Jul 2018, 21:00
Last modified:06 Aug 2024, 02:27

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.0 (nvd)
EPSS Score
1.81% LOW
2% probability +0.07%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

31 Jul 2018, 21:00
Published
Vulnerability first disclosed
06 Aug 2024, 02:27
Last Modified
Vulnerability information updated

Description

The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  • v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 1.81%• Percentile: 83%

Techniques & Countermeasures

  • CWE-415•Double Free

    The product calls free() twice on the same memory address.

  • 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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

  • haxx•curl

    < 7.51.0

  • the curl project•curl

    7.51.0

References (9)