THREATPORT/VULNERABILITY/CVE-2017-7558
MEDIUM SEVERITY

CVE-2017-7558

Linux Kernel vulnerability

CVSS
5.1
EPSS
3.8%
EPSS pct
89th
Exploited
No known
A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.
Affected vendor
Linux
Affected product
Linux Kernel
CVSS vector
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2018-07-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2017-7558

  • Confirm whether Linux Linux Kernel is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-7558.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-7558

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