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Home
Patched Functions
Matrix Org
Synapse
On_POST

on_POST in matrix-org/synapse: Patched by 5 CVEs

matrix-org/synapse

Function

7 files

on_POST

Defined in 7 files

Last patched September 26, 2023

5

CVEs

That changed this function

16

Distinct patches

Backports counted once

150

Lines changed

Added plus removed

2020–2023

Years

By CVE publication date

Overview

on_POST in matrix-org/synapse was changed by 5 published CVE fixes between 2020 and 2023, in 16 distinct patches that added or removed 150 lines in total.

The name occurs in 7 files: synapse/federation/transport/server.py, synapse/rest/client/v2_alpha/groups.py, synapse/rest/client/account.py, synapse/rest/client/v2_alpha/auth.py, synapse/rest/client/v2_alpha/register.py, synapse/rest/client/read_marker.py, synapse/rest/client/receipts.py.

matrix-org/synapse has 29 CVEs with a located fix in total, so 17% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed on_POST, newest first, with the lines each fix touched.

Temporary storage of plaintext passwords during password changes in matrix synapse
CVE-2023-41335 · synapse/rest/client/account.py · lines 189–212 · +2 −2 in 2 hunks
Low · CVSS 2.0
EPSS 0.4%2023-09-26
Improper validation of receipts allows forged read receipts in matrix synapse
CVE-2023-42453 · synapse/rest/client/read_marker.py · line 87 · +1 −1
Medium · CVSS 6.3
EPSS 0.8%2023-09-26
Improper validation of receipts allows forged read receipts in matrix synapse
CVE-2023-42453 · synapse/rest/client/receipts.py · line 111 · +1 −1
Medium · CVSS 6.3
EPSS 0.8%2023-09-26
Denial of service (via resource exhaustion) due to improper input validation on groups/communities endpoints
CVE-2021-21393 · synapse/federation/transport/server.py · lines 1122–1324 · +38 −2 in 4 hunks
Medium · CVSS 6.0
EPSS 1.6%2021-04-12
Denial of service (via resource exhaustion) due to improper input validation on groups/communities endpoints
CVE-2021-21393 · synapse/rest/client/v2_alpha/groups.py · lines 92–578 · +16 −2 in 2 hunks
Medium · CVSS 6.0
EPSS 1.6%2021-04-12
Denial of service (via resource exhaustion) due to improper input validation on groups/communities endpoints
CVE-2021-21393 · synapse/rest/client/v2_alpha/register.py · line 196 · +1 −0
Medium · CVSS 6.0
EPSS 1.6%2021-04-12
Denial of service (via resource exhaustion) due to improper input validation on third-party identifier endpoints
CVE-2021-21394 · synapse/federation/transport/server.py · lines 1122–1324 · +38 −2 in 4 hunks
Medium · CVSS 6.0
EPSS 1.5%2021-04-12
Denial of service (via resource exhaustion) due to improper input validation on third-party identifier endpoints
CVE-2021-21394 · synapse/rest/client/v2_alpha/groups.py · lines 92–578 · +16 −2 in 2 hunks
Medium · CVSS 6.0
EPSS 1.5%2021-04-12
Denial of service (via resource exhaustion) due to improper input validation on third-party identifier endpoints
CVE-2021-21394 · synapse/rest/client/v2_alpha/register.py · line 196 · +1 −0
Medium · CVSS 6.0
EPSS 1.5%2021-04-12
Cross-site scripting (XSS) vulnerability in the fallback authentication endpoint
CVE-2020-26891 · synapse/rest/client/v2_alpha/auth.py · lines 141–168 · +12 −12 in 2 hunks
Medium · CVSS 5.1
EPSS 1.9%2020-10-19

Get an alert when the next CVE fix lands in matrix-org/synapse, with the patched functions.

Monitor synapse CVEs

Other functions in these files

Functions in the same files that CVE fixes also changed.

1on_DELETEsynapse/rest/client/v2_alpha/groups.py2 CVEs · 4 patches2021
2on_PUTsynapse/federation/transport/server.py2 CVEs · 4 patches2018 to 2020
3on_PUTsynapse/rest/client/v2_alpha/groups.py2 CVEs · 4 patches2021
4on_GETsynapse/rest/client/v2_alpha/register.py2 CVEs · 2 patches2021
5__init__synapse/rest/client/v2_alpha/groups.py2 CVEs · 2 patches2021
6register_servletssynapse/rest/client/v2_alpha/groups.py2 CVEs · 2 patches2021
7wrappersynapse/rest/client/v2_alpha/groups.py2 CVEs · 2 patches2021
8on_GETsynapse/federation/transport/server.py1 CVEs · 2 patches2020

Other hotspots in the repository

Functions in matrix-org/synapse changed by the most CVE fixes.

read_templates3 CVEs · synapse/config/_base.py read_config3 CVEs · synapse/config/consent_config.py read_config3 CVEs · synapse/config/registration.py read_config3 CVEs · synapse/config/captcha.py get_rooms_in_group3 CVEs · synapse/groups/groups_server.py get_file2 CVEs · synapse/http/client.py

All patched functions in matrix-org/synapse

Frequently asked questions

Common questions about CVE fixes to on_POST.

How many CVEs have patched on_POST?: 5 published CVEs changed on_POST in matrix-org/synapse, in 16 distinct patches totalling 150 changed lines, between 2020 and 2023.
What is the latest CVE that changed on_POST?: CVE-2023-41335 (Temporary storage of plaintext passwords during password changes in matrix synapse), published 2023-09-26, changed lines 189 to 212 of synapse/rest/client/account.py.
How does on_POST compare to the rest of matrix-org/synapse?: matrix-org/synapse has 29 CVEs with a located fix in total; 5 of them changed on_POST.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

synapse/federation/transport/server.py on GitHub (opens in a new tab)
synapse/rest/client/v2_alpha/groups.py on GitHub (opens in a new tab)
synapse/rest/client/account.py on GitHub (opens in a new tab)
All patched functions in matrix-org/synapse
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References