PT-2022-11867 · Zlog · Zlog

Windo · Published 2022-04-08 · Updated 2022-05-11 · CVE-2021-43521

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 zlog version 1.2.15

Description A Buffer Overflow issue exists via the zlog conf build with file function in src/zlog/src/conf.c. This allows for potential exploitation. No information is provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations For zlog version 1.2.15, consider disabling the zlog conf build with file function as a temporary workaround until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-43521

OESA-2022-1652

Affected Products

Zlog

References · 8

• 🔥 https://github.com/HardySimpson/zlog/issues/206 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-43521 · Security Note
• https://osv.dev/vulnerability/CVE-2021-43521 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-1652 · Vendor Advisory
• https://github.com/HardySimpson/zlog · Note
• https://t.me/cvenotify/28963 · Telegram Post
• https://t.me/cibsecurity/40395 · Telegram Post
• https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1652 · Note