CVE-2020-12783
Published: 11 May 2020
Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c.
Priority
Status
Package | Release | Status |
---|---|---|
exim4 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.90.1-1ubuntu1.5)
|
eoan |
Released
(4.92.1-1ubuntu3.1)
|
|
focal |
Released
(4.93-13ubuntu1.1)
|
|
trusty |
Released
(4.82-3ubuntu2.4+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Released
(4.93-16)
|
|
xenial |
Released
(4.86.2-2ubuntu2.6)
|
|
Patches: upstream: https://git.exim.org/exim.git/commit/57aa14b216432be381b6295c312065b2fd034f86 upstream: https://git.exim.org/exim.git/commit/a04174dc2a84ae1008c23b6a7109e7fa3fb7b8b0 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |