Is CVE-2023-40303 in the CISA KEV catalog?

No. CVE-2023-40303 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-40303?

CVE-2023-40303 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-40303?

CVE-2023-40303 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-40303?

Upgrade inetutils on debian 11 to 2:2.0-1+deb11u2 or later. Fixes are available for 12 affected products.

CVE & CISA-KEV Catalog

CVE-2023-40303

HIGH

7.8

CVSS v3

NVD

Description

GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd. This is, for example, relevant if the setuid system call fails when a process is trying to drop privileges before letting an ordinary user control the activities of the process.

CWE-252

How to fix

Remediation Available

inetutilsDebian

Fixed in:2:2.0-1+deb11u2CVE-2023-40303

Fixed in:2:2.4-2+deb12u1CVE-2023-40303

Fixed in:2:2.4-3CVE-2023-40303

inetutilsUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

Fixed in:2:1.9.4-11ubuntu0.2USN-6304-1

Fixed in:2:2.2-2ubuntu0.1USN-6304-1

Fixed in:2:2.4-2ubuntu1.1USN-6304-1

inetutils-ftpUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-ftpdUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-inetdUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-pingUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-syslogdUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-talkUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-telnetUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-telnetdUbuntu

Fixed in:2:1.9.4-11ubuntu0.2USN-6304-1

Fixed in:2:2.2-2ubuntu0.1USN-6304-1

Fixed in:2:2.4-2ubuntu1.1USN-6304-1

inetutils-toolsUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

Fixed in:2:1.9.4-11ubuntu0.2USN-6304-1

Fixed in:2:2.2-2ubuntu0.1USN-6304-1

Fixed in:2:2.4-2ubuntu1.1USN-6304-1

inetutils-tracerouteUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Patch2

Product1

ftp.gnu.org

Other references2

Related Vulnerabilities

Other CWE-252 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2005-4360	High	7.8	87%	-	-
CVE-2007-3798	Critical	9.8	70%	-	Fix
CVE-2010-0211	Critical	9.8	29%	-	Fix
CVE-2022-23626	High	8.5	9.9%	-	Fix
CVE-2019-10902	High	7.5	4.7%	-	-
CVE-2018-20216	High	7.5	3.9%	-	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.