CVE-2018-13348 Information

Description

The mpatch_decode function in mpatch.c in Mercurial before 4.6.1 mishandles certain situations where there should be at least 12 bytes remaining after the current position in the patch data but actually are not aka OVE-20180430-0001.

CVSS Vector

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

Reference

https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html https://www.mercurial-scm.org/repo/hg/rev/90a274965de7 https://www.mercurial-scm.org/wiki/WhatsNewMercurial_4.6.1_.282018-06-06.29

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5