CVE-2023-22899

medium

Description

Zip4j through 2.11.2, as used in Threema and other products, does not always check the MAC when decrypting a ZIP archive.

References

Advisories
More

https://news.ycombinator.com/item?id=34316206

https://github.com/srikanth-lingala/zip4j/releases

https://breakingthe3ma.app

https://threema.ch/en/blog/posts/news-alleged-weaknesses-statement

https://github.com/srikanth-lingala/zip4j/issues/485

https://breakingthe3ma.app/files/Threema-PST22.pdf

Details

Source: Mitre, NVD

Published: 2023-01-10

Updated: 2025-04-09

Risk Information

CVSS v2

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: Medium

EPSS

EPSS: 0.0021