CVE-2020-7455 Information

Description

In FreeBSD 12.1-STABLE before r360973 12.1-RELEASE before p5 11.4-STABLE before r360973 11.4-BETA1 before p1 and 11.3-RELEASE before p9 the FTP packet handler in libalias incorrectly calculates some packet length allowing disclosure of small amounts of kernel (for kernel NAT) or natd process space (for userspace natd).

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:13.libalias.asc https://security.netapp.com/advisory/ntap-20200518-0005/ https://www.zerodayinitiative.com/advisories/ZDI-20-661/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5