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AUSCERT External Security Bulletin Redistribution
ESB-2023.7515
USN-6233-2: YAJL vulnerabilities
18 December 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: YAJL
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2023-33460 CVE-2022-24795 CVE-2017-16516
Original Bulletin:
https://ubuntu.com/security/notices/USN-6233-2
Comment: CVSS (Max): 7.5 CVE-2022-24795 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: Ubuntu
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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USN-6233-2: YAJL vulnerabilities
14 December 2023
Several security issues were fixed in YAJL.
Releases
o Ubuntu 23.04
o Ubuntu 22.04 LTS
o Ubuntu 20.04 LTS
Packages
o yajl - Yet Another JSON Library
Details
USN-6233-1 fixed vulnerabilities in YAJL. This update provides the
corresponding updates for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu
23.04.
Original advisory details:
It was discovered that YAJL was not properly performing bounds checks when
decoding a string with escape sequences. If a user or automated system
using YAJL were tricked into processing specially crafted input, an
attacker could possibly use this issue to cause a denial of service
(application abort). ( CVE-2017-16516 )
It was discovered that YAJL was not properly handling memory allocation
when dealing with large inputs, which could lead to heap memory
corruption. If a user or automated system using YAJL were tricked into
running a specially crafted large input, an attacker could possibly use
this issue to cause a denial of service. ( CVE-2022-24795 )
It was discovered that memory leaks existed in one of the YAJL parsing
functions. An attacker could possibly use this issue to cause a denial of
service (memory exhaustion). ( CVE-2023-33460 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 23.04
o libyajl2 - 2.1.0-3ubuntu0.23.04.1
Ubuntu 22.04
o libyajl2 - 2.1.0-3ubuntu0.22.04.1
Ubuntu 20.04
o libyajl2 - 2.1.0-3ubuntu0.20.04.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2023-33460
o CVE-2017-16516
o CVE-2022-24795
Related notices
o USN-6233-1 : yajl-tools, libyajl-dev, libyajl2, yajl, libyajl-doc
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