Is CVE-2023-29197 in the CISA KEV catalog?

No. CVE-2023-29197 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-29197?

CVE-2023-29197 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-29197?

CVE-2023-29197 has an EPSS score of 1.22% (65th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-29197?

Upgrade php-guzzlehttp-psr7 on debian 11 to 1.7.0-1+deb11u2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2023-29197

MEDIUM

5.3

CVSS v3

NVD

Description

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Affected versions are subject to improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n. This is a follow-up to CVE-2022-24775 where the fix was incomplete. The issue has been patched in versions 1.9.1 and 2.4.5. There are no known workarounds for this vulnerability. Users are advised to upgrade.

CWE-436

How to fix

Remediation Available

php-guzzlehttp-psr7Debian

Fixed in:1.7.0-1+deb11u2CVE-2023-29197

Fixed in:2.4.5-1CVE-2023-29197

php-guzzlehttp-psr7Ubuntu

Fixed in:1.4.2-0.1+deb10u2build0.20.04.1USN-6670-1

Fixed in:1.8.3-1ubuntu0.1~esm1USN-6670-1

php-nyholm-psr7Ubuntu

Fixed in:1.5.0-1ubuntu0.1~esm1USN-6671-1

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

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.22%probability of exploitation in 30 days

65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Vendor Advisory1

github.com

Third-Party Advisory2

Technical Description1

rfc-editor.org

Other references3

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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.