PT-2022-28159 · Guzzle+3 · Guzzlehttp/Psr7+3

Grahamcampbell

+2

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Published

2022-03-25

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Updated

2024-08-20

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CVE-2023-29197

CVSS v3.1

5.3

Medium

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Name of the Vulnerable Software and Affected Versions guzzlehttp/psr7 versions prior to 1.9.1 guzzlehttp/psr7 versions prior to 2.4.5
Description The issue concerns improper header parsing, allowing an attacker to sneak in a newline ( ) into both the header names and values. Many servers will also accept `
to terminate the header list, which is not in line with the specification that statesr r ` should be used. This could potentially lead to application errors or invalid HTTP requests being sent out, possibly causing a denial of service vector if a remote service's web application firewall bans the application due to the receipt of malformed requests.
Recommendations For guzzlehttp/psr7 versions prior to 1.9.1, upgrade to version 1.9.1 or later. For guzzlehttp/psr7 versions prior to 2.4.5, upgrade to version 2.4.5 or later. As a temporary workaround, consider validating HTTP header keys and/or values, and if using user-supplied values, filter them to strip off leading or trailing newline characters before processing.

Exploit

Fix

RCE

Weakness Enumeration

Related Identifiers

ALT-PU-2023-4877
ALT-PU-2024-11168
ALT-PU-2024-1228
BIT-DRUPAL-2022-24775
CVE-2023-29197
DLA-3705-1
GHSA-9JXR-MWPP-W643
GHSA-Q7RV-6HP3-VH96
GHSA-WJFC-PGFP-PV9C
GHSA-WXMH-65F7-JCVW
GHSA-XV3H-4844-9H36
MGASA-2023-0241
USN-6670-1
USN-6671-1

Affected Products

Alt Linux
Linuxmint
Ubuntu
Guzzlehttp/Psr7