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CVE-2023-33460

20
FAUCET Score

CVE-2023-33460 describes a memory leak vulnerability in yajl version 2.1.0, specifically when using the yajl_tree_parse function, affecting various Debian and Fedora distributions. This flaw can lead to an out-of-memory condition, causing server crashes. With a CVSS score of 6.5 (Medium), it can be exploited remotely with low attack complexity, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.1.0CPE matchmatch criteria
cpe:2.3:a:yajl_project:yajl:2.1.0:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.13%
Probability of exploitation in next 30 days
EPSS Percentile
63.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0113 is in the 76th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 (15)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 2.1.0-19
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 2.1.0-19
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 2.1.0-19
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 2.1.0-18
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 2.1.0-18
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 2.1.0-19
microsoftpatch availablevia msrc
Product: cm1 yajl 2.1.0-18 on CBL Mariner 1.0Fixed in: 2.1.0-18
microsoftpatch availablevia msrc
Product: cbl2 yajl 2.1.0-19 on CBL Mariner 2.0Fixed in: 2.1.0-19
microsoftpatch availablevia msrc
Product: azl3 yajl 2.1.0-19 on Azure Linux 3.0Fixed in: 2.1.0-19
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: yajl-0:2.1.0-13.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: yajl-0:2.1.0-12.el8_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: yajl-0:2.1.0-22.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: yajl-0:2.1.0-12.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libreoffice:flatpak/yajl

Vendor Advisories (3)

microsoft2024-Jun/CVE-2023-33460

CVE-2023-33460

Jun 11, 2024
microsoft2023-Jun/CVE-2023-33460Moderate

There's a memory leak in yajl 2.1.0 with use of yajl_tree_parse function. which will cause out-of-memory in server and cause crash.

Jun 13, 2023
redhatCVE-2023-33460Moderate

yajl: Memory leak in yajl_tree_parse function

Jun 6, 2023

References

github.com / lloyd/yajl/issues/250
ExploitIssue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2023/07/msg00000.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2023/07/msg00013.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2023/08/msg00003.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/IBUUHG27RM4ROEYKMVRROR27AX6R63MB
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KLE3C4CECEJ4EUYI56KXI6OWACWXX7WN
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/YO32YDJ74DADC7CMJNLSLBVWN5EXGF5J