Is CVE-2018-12020 in the CISA KEV catalog?

No. CVE-2018-12020 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-12020?

CVE-2018-12020 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-12020?

CVE-2018-12020 has an EPSS score of 8.65% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-12020?

Upgrade enigmail on debian 11 to 2:2.0.7-1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2018-12020

HIGHEPSS 94th pctl

7.5

CVSS v3

NVD

Description

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.

CWE-706

How to fix

Remediation Available

enigmailDebian

Fixed in:2:2.0.7-1CVE-2018-12020

gnupgUbuntu

Fixed in:1.4.16-1ubuntu2.5USN-3675-1

Fixed in:1.4.20-1ubuntu3.2USN-3675-1

Fixed in:2.2.4-1ubuntu1.1USN-3675-1

gnupg2Ubuntu

Fixed in:2.0.22-3ubuntu1.4USN-3675-2

Fixed in:2.1.11-6ubuntu2.1USN-3675-2

Fixed in:2.2.4-1ubuntu1.1USN-3675-1

gpgUbuntu

Fixed in:2.2.4-1ubuntu1.1USN-3675-1

python-gnupgUbuntu

Fixed in:0.3.6-1ubuntu0.1~esm1USN-4839-1

Fixed in:0.3.8-2ubuntu0.1~esm1USN-4839-1

Fixed in:0.4.1-1ubuntu1.18.04.1USN-3964-1

python3-gnupgUbuntu

Fixed in:0.3.6-1ubuntu0.1~esm1USN-4839-1

Fixed in:0.3.8-2ubuntu0.1~esm1USN-4839-1

Fixed in:0.4.1-1ubuntu1.18.04.1USN-3964-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

8.65%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch1

dev.gnupg.org

Vendor Advisory1

lists.gnupg.org

Third-Party Advisory17

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.