Is CVE-2023-28100 in the CISA KEV catalog?

No. CVE-2023-28100 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-28100?

CVE-2023-28100 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2023-28100?

CVE-2023-28100 has an EPSS score of 0.87% (54th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-28100?

Upgrade flatpak on debian 11 to 1.10.8-0+deb11u1 or later. Fixes are available for 21 affected products.

CVE & CISA-KEV Catalog

CVE-2023-28100

CRITICAL

10.0

CVSS v3

NVD

Description

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4 contain a vulnerability similar to CVE-2017-5226, but using the `TIOCLINUX` ioctl command instead of `TIOCSTI`. If a Flatpak app is run on a Linux virtual console such as `/dev/tty1`, it can copy text from the virtual console and paste it into the command buffer, from which the command might be run after the Flatpak app has exited. Ordinary graphical terminal emulators like xterm, gnome-terminal and Konsole are unaffected. This vulnerability is specific to the Linux virtual consoles `/dev/tty1`, `/dev/tty2` and so on. A patch is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, don't run Flatpak on a Linux virtual console. Flatpak is primarily designed to be used in a Wayland or X11 graphical environment.

CWE-20Improper Input Validation

How to fix

Remediation Available

flatpakDebian

Fixed in:1.10.8-0+deb11u1CVE-2023-28100

Fixed in:1.14.4-1CVE-2023-28100

flatpakRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpakRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-debuginfoRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-debuginfoRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-debugsourceRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-debugsourceRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-develRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-develRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-libsRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-libsRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-libs-debuginfoRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-libs-debuginfoRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-selinuxRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-selinuxRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-session-helperRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-session-helperRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-session-helper-debuginfoRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-session-helper-debuginfoRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-tests-debuginfoRocky

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

flatpak-tests-debuginfoRed Hat / RHEL

Fixed in:0:1.10.8-1.el8RHSA-2023:7038

Fixed in:0:1.12.8-1.el9RHSA-2023:6518

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

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.87%probability of exploitation in 30 days

54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Patch2

Mailing List1

marc.info

Other references1

security.gentoo.org

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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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.