CVE-2023-38802

HIGHEPSS 71th pctl

7.5

CVSS v3

Description

FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation).

CWE-354

How to fix

Remediation Available

frrDebian

Fixed in:7.5.1-1.1+deb11u2CVE-2023-38802

Fixed in:8.4.4-1.1~deb12u1CVE-2023-38802

Fixed in:8.4.4-1.1CVE-2023-38802

frrRed Hat / RHEL

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

frrRocky

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

frr-contribRed Hat / RHEL

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

frr-contribRocky

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

frr-debuginfoRocky

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

frr-debuginfoRed Hat / RHEL

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

frr-debugsourceRocky

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

frr-debugsourceRed Hat / RHEL

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.5-4.el8_4.4RHSA-2023:5196

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:7.0-5.el8_2.1RHSA-2023:5465

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:7.5-11.el8_6.2RHSA-2023:5195

Fixed in:0:7.0-5.el8_1.1RHSA-2023:5464

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

Fixed in:0:8.0-5.el9_0.1RHSA-2023:5457

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

frr-selinuxRocky

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

frr-selinuxRed Hat / RHEL

Fixed in:0:7.5.1-7.el8_8.2RHSA-2023:5219

Fixed in:0:8.3.1-5.el9_2.2RHSA-2023:5194

frrUbuntu

Fixed in:7.2.1-1ubuntu0.2+esm2USN-6807-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.44%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Exploit1

blog.benjojo.co.uk

Third-Party Advisory3

Mailing List3

Related Vulnerabilities

Other CWE-354 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-48795	Medium	5.9	93%	-	Fix
CVE-2019-1166	Medium	5.9	68%	-	-
CVE-2024-3596	Critical	9.0	15%	-	Fix
CVE-2020-26141	Medium	6.5	3.1%	-	Fix
CVE-2020-25862	High	7.5	2.4%	-	Fix
CVE-2020-8838	Medium	6.4	1.6%	-	-

Common questions

How do I fix CVE-2023-38802?

Published advisories record a fix for 12 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2023-38802 being actively exploited?

Not that we know of. CVE-2023-38802 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 71% of all scored CVEs.

How severe is CVE-2023-38802?

CVE-2023-38802 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2023-38802 affect?

Published advisories record a fix for frr (Debian), frr (Red Hat / RHEL), frr (Rocky), frr-contrib (Red Hat / RHEL), and 8 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2023-38802

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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.