Is CVE-2020-22283 in the CISA KEV catalog?

No. CVE-2020-22283 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-22283?

CVE-2020-22283 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-22283?

CVE-2020-22283 has an EPSS score of 1.37% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-22283?

Upgrade lwip on debian 11 to 2.1.2+dfsg1-8+deb11u1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2020-22283

HIGH

7.5

CVSS v3

NVD

Description

A buffer overflow vulnerability in the icmp6_send_response_with_addrs_and_netif() function of Free Software Foundation lwIP version git head allows attackers to access sensitive information via a crafted ICMPv6 packet.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

lwipDebian

Fixed in:2.1.2+dfsg1-8+deb11u1CVE-2020-22283

Fixed in:2.1.3+dfsg1-1CVE-2020-22283

liblwip-devUbuntu

Fixed in:2.1.2+dfsg1-4ubuntu0.1~esm1USN-8423-1

Fixed in:2.1.3+dfsg1-1ubuntu0.1~esm1USN-8423-1

Fixed in:2.2.0+dfsg1-6.1ubuntu0.1~esm1USN-8423-1

liblwip-docUbuntu

Fixed in:2.1.2+dfsg1-4ubuntu0.1~esm1USN-8423-1

Fixed in:2.1.3+dfsg1-1ubuntu0.1~esm1USN-8423-1

Fixed in:2.2.0+dfsg1-6.1ubuntu0.1~esm1USN-8423-1

liblwip0Ubuntu

Fixed in:2.1.2+dfsg1-4ubuntu0.1~esm1USN-8423-1

Fixed in:2.1.3+dfsg1-1ubuntu0.1~esm1USN-8423-1

liblwip0t64Ubuntu

Fixed in:2.2.0+dfsg1-6.1ubuntu0.1~esm1USN-8423-1

lwipUbuntu

Fixed in:2.1.2+dfsg1-4ubuntu0.1~esm1USN-8423-1

Fixed in:2.1.3+dfsg1-1ubuntu0.1~esm1USN-8423-1

Fixed in:2.2.0+dfsg1-6.1ubuntu0.1~esm1USN-8423-1

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

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.37%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch1

savannah.nongnu.org

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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.