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CVE-2024-34402

25
FAUCET Score

CVE-2024-34402 is a high-severity integer overflow vulnerability in uriparser through version 0.9.7, specifically affecting the ComposeQueryEngine function in UriQuery.c, which can lead to a buffer overflow. This flaw impacts fedoraproject fedora, fedoraproject uriparser, uriparser_project fedora, and uriparser_project uriparser. With a CVSS score of 8.6, it is remotely exploitable with low attack complexity and no user interaction, potentially causing partial confidentiality and integrity compromise, and high availability impact. There is currently no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog. Community discussion is minimal, with only one mention, and there is no media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.7CPE matchmatch criteria
cpe:2.3:a:uriparser_project:uriparser:*:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
39CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
40CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.23%
Probability of exploitation in next 30 days
EPSS Percentile
65.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0123 is in the 45th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

microsoftpatch availablevia msrc
Product: 17691-17084Fixed in: 0.9.8-3
microsoftpatch availablevia msrc
Product: azl3 uriparser 0.9.8-3 on Azure Linux 3.0Fixed in: 0.9.8-3
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

microsoft2024-May/CVE-2024-34402Important

An issue was discovered in uriparser through 0.9.7. ComposeQueryEngine in UriQuery.c has an integer overflow via long keys or values, with a resultant buffer overflow.

May 14, 2024
redhatCVE-2024-34402Moderate

uriparser: integer overflow via long keys or values in ComposeQueryEngine() in UriQuery.c

May 3, 2024

References

lists.fedoraproject.org / archives/list/[email protected]/message/5R36L762D3KX3GA66OOPWW7M7KKDRXDP
lists.fedoraproject.org / archives/list/[email protected]/message/CZ6KEUQXWCTYXGTBMZDD7CHJCYI52XY3
github.com / uriparser/uriparser/issues/183
Issue TrackingVendor Advisory
github.com / uriparser/uriparser/pull/185
Issue TrackingVendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/5R36L762D3KX3GA66OOPWW7M7KKDRXDP
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/CZ6KEUQXWCTYXGTBMZDD7CHJCYI52XY3
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/UG4J7PD475LSCGCSHFU4GMU4TWLDSNW2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2024/05/06/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2024/05/06/3
Mailing ListThird Party Advisory