What is CVE-2018-7889?

CVE-2018-7889 is a high-severity vulnerability in Calibre-ebook Calibre, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2018-03-08.

How severe is CVE-2018-7889?

High severity. CVSS v3 base score is 7.8 out of 10.

Deserialization in Calibre-ebook Calibre

CVE-2018-7889

gui2/viewer/bookmarkmanager.py in Calibre 3.18 calls cPickle.load on imported bookmark data, which allows remote attackers to execute arbitrary code via a crafted .pickle file, as demonstrated by Python code that contains an os.system call.

Vulnerability class: Insecure Deserialization

EPSS: 0.047 (90.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Calibre-ebook Calibre — versions 3.18.0
N/a — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

cve@mitre.org (x_refsource_CONFIRM, Exploit, Third Party Advisory)
cve@mitre.org (x_refsource_CONFIRM, Patch)

Frequently asked questions

What is CVE-2018-7889?: CVE-2018-7889 is a high-severity vulnerability in Calibre-ebook Calibre, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2018-03-08.
How severe is CVE-2018-7889?: High severity. CVSS v3 base score is 7.8 out of 10.