PT-2021-12008 · Jansson+2 · Jansson+2

Jordy Zomer · Published 2021-04-26 · Updated 2025-08-12 · CVE-2020-36325

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Jansson versions through 2.13.1

Description: An issue was discovered due to a parsing error in json loads, resulting in an out-of-bounds read-access bug. This issue only occurs when a programmer fails to follow the API specification.

Recommendations: For versions through 2.13.1, ensure that programmers follow the API specification to avoid the out-of-bounds read-access bug. As a temporary workaround, consider adding input validation to the json loads function to prevent malformed input from causing the bug. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2024-16498

AZL-6490

CVE-2020-36325

ECHO-9560-A9F7-ADE3

Affected Products

Alt Linux

Debian

Jansson

References · 14

• 🔥 https://github.com/akheron/jansson/issues/548 · Exploit
• https://ubuntu.com/security/CVE-2020-36325 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-36325 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-36325 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-36325 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-6490 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2020-36325 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-36325 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-36325 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2020-36325 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-36325 · Vendor Advisory
• https://t.me/cvenotify/13835 · Telegram Post
• https://security.alpinelinux.org/vuln/CVE-2020-36325 · Note
• https://t.me/cvenotify/89054 · Telegram Post