Upstream information

CVE-2021-44538 at MITRE

Description

The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted sequence of messages to manipulate the state of the receiver's session in such a way that, for some buffer sizes, a buffer overflow happens on a call to olm_session_describe. Furthermore, safe buffer sizes were undocumented. The overflow content is partially controllable by the attacker and limited to ASCII spaces and digits. The known affected products are Element Web And SchildiChat Web.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.8 8.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network Network
Attack Complexity Low High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entries: 1194020 [REOPENED], 1194215 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 15 SP3
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server for SAP Applications 15 SP3
SUSE Linux Enterprise Workstation Extension 15 SP3
  • MozillaThunderbird >= 91.4.1-8.48.1
  • MozillaThunderbird-translations-common >= 91.4.1-8.48.1
  • MozillaThunderbird-translations-other >= 91.4.1-8.48.1
Patchnames:
SUSE-SLE-Product-WE-15-SP3-2022-58
SUSE Linux Enterprise Desktop 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Linux Enterprise Workstation Extension 15 SP4
  • MozillaThunderbird >= 91.8.0-150200.8.65.1
  • MozillaThunderbird-translations-common >= 91.8.0-150200.8.65.1
  • MozillaThunderbird-translations-other >= 91.8.0-150200.8.65.1
Patchnames:
SUSE Linux Enterprise Workstation Extension 15 SP4 GA MozillaThunderbird-91.8.0-150200.8.65.1
openSUSE Leap 15.3
  • MozillaThunderbird >= 91.4.1-8.48.1
  • MozillaThunderbird-translations-common >= 91.4.1-8.48.1
  • MozillaThunderbird-translations-other >= 91.4.1-8.48.1
Patchnames:
openSUSE-SLE-15.3-2022-58
openSUSE Leap 15.4
  • MozillaThunderbird >= 91.8.0-150200.8.65.1
  • MozillaThunderbird-translations-common >= 91.8.0-150200.8.65.1
  • MozillaThunderbird-translations-other >= 91.8.0-150200.8.65.1
Patchnames:
openSUSE Leap 15.4 GA MozillaThunderbird-91.8.0-150200.8.65.1
openSUSE Tumbleweed
  • MozillaThunderbird >= 91.4.1-1.1
  • MozillaThunderbird-translations-common >= 91.4.1-1.1
  • MozillaThunderbird-translations-other >= 91.4.1-1.1
Patchnames:
openSUSE Tumbleweed GA MozillaThunderbird-91.4.1-1.1


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Enterprise Storage 7.1 MozillaThunderbird Affected
SUSE Linux Enterprise Desktop 15 SP4 MozillaThunderbird Released
SUSE Linux Enterprise High Performance Computing 15 SP4 MozillaThunderbird Affected
SUSE Linux Enterprise Module for Package Hub 15 SP4 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP4 MozillaThunderbird Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 MozillaThunderbird Released
SUSE Linux Enterprise Workstation Extension 15 SP4 MozillaThunderbird Released
SUSE Manager Proxy 4.2 MozillaThunderbird Affected
SUSE Manager Proxy 4.3 MozillaThunderbird Affected
SUSE Manager Retail Branch Server 4.2 MozillaThunderbird Affected
SUSE Manager Retail Branch Server 4.3 MozillaThunderbird Affected
SUSE Manager Server 4.2 MozillaThunderbird Affected
SUSE Manager Server 4.3 MozillaThunderbird Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP3 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP1 MozillaThunderbird Unsupported
SUSE Linux Enterprise Server 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP3 MozillaThunderbird Released
SUSE Linux Enterprise Server for SAP Applications 15 MozillaThunderbird Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP1 MozillaThunderbird Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 MozillaThunderbird Released
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise Desktop 15 MozillaThunderbird Unsupported
SUSE Linux Enterprise Desktop 15 SP1 MozillaThunderbird Unsupported
SUSE Linux Enterprise Desktop 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Desktop 15 SP3 MozillaThunderbird Released
SUSE Linux Enterprise Module for Package Hub 15 SP3 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 MozillaThunderbird Unsupported
SUSE Linux Enterprise Workstation Extension 15 MozillaThunderbird Unsupported
SUSE Linux Enterprise Workstation Extension 15 SP1 MozillaThunderbird Unsupported
SUSE Linux Enterprise Workstation Extension 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Workstation Extension 15 SP3 MozillaThunderbird Released


SUSE Timeline for this CVE

CVE page created: Tue Dec 14 23:00:59 2021
CVE page last modified: Mon Jan 16 20:42:45 2023