Improper input validation in Mercurial

CVE-2018-13346

The mpatch_apply function in mpatch.c in Mercurial before 4.6.1 incorrectly proceeds in cases where the fragment start is past the end of the original data, aka OVE-20180430-0004.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.023 (81.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-13346?
CVE-2018-13346 is a high-severity vulnerability in Mercurial, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-07-06.
How severe is CVE-2018-13346?
High severity. CVSS v3 base score is 7.5 out of 10.