Buffer overflow in Mercurial - CVE-2018-13346
Published: August 6, 2018 / Updated: August 7, 2018
Vulnerability identifier: #VU14211
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-13346
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mercurial
Affected software:
Mercurial
Mercurial
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to boundary error when the mpatch_apply function in mpatch.c incorrectly proceeds in cases where the fragment start is past the end of the original data. A remote unauthenticated attacker can supply specially crafted input, trigger memory corruption and cause the service to crash.
How to mitigate CVE-2018-13346
Update to version 4.6.1.