THREATPORT/VULNERABILITY/CVE-2018-12020
HIGH SEVERITY

CVE-2018-12020

Enterprise Linux Desktop vulnerability

CVSS
7.5
EPSS
8.7%
EPSS pct
95th
Exploited
No known
mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.
Affected vendor
Redhat
Affected product
Enterprise Linux Desktop
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness type (CWE)
Published
2018-06-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 8.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2018-12020

  • Confirm whether Redhat Enterprise Linux Desktop is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-12020.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-12020

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-12020 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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