Am I affected?

This record states its affected versions in a form that can't be compared automatically.

3.0.1 and up affected
5.3.3 not affected
5.2.11.3 not affected
5.1.4.12 not affected
every other version: unknown

Description

Uncontrolled Resource Consumption vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Flooding.

This vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl.

This issue affects OTP from OTP 17.0 before OTP 28.0.3, OTP 27.3.4.3 and OTP 26.2.5.15, corresponding to ssh from 3.0.1 before 5.3.3, 5.2.11.3 and 5.1.4.12.

Weaknesses & attack patterns

Weakness

CWE-400 · Uncontrolled Resource Consumption in catalog → MITRE ↗
CWE-770 · Allocation of Resources Without Limits or Throttling in catalog → MITRE ↗

Attack patterns

CAPEC-130 · Excessive Allocation MITRE ↗
CAPEC-125 · Flooding MITRE ↗

Affected — Erlang / ssh Repository ↗

3.0.1 and up affected
5.3.3 not affected
5.2.11.3 not affected
5.1.4.12 not affected
every other version: unknown
default status unknown
cpe cpe:2.3:a:erlang:erlang/otp:*:*:*:*:*:*:*:*
modules · source files
modules ssh_sftp
source files lib/ssh/src/ssh_sftpd.erl

Affected — GitHub / erlang/otp Repository ↗

17.0 and up affected
28.0.3 not affected
27.3.4.3 not affected
26.2.5.15 not affected
07b8f44 and up affected
7cd7abb not affected
548f129 not affected
every other version: unknown
default status unknown
cpe cpe:2.3:a:erlang:erlang/otp:*:*:*:*:*:*:*:*
modules · source files
modules ssh_sftp
source files lib/ssh/src/ssh_sftpd.erl

Workarounds

  • set option parallel_login to false
  • reduce max_sessions option

References

Credits

Jakub Witczak Remediation developer
Ingela Anderton Andin Remediation reviewer

CVSS breakdown

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
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