Bug 1223687 (CVE-2024-29038)

Summary:	VUL-0: CVE-2024-29038: tpm2.0-tools: arbitrary quote data may go undetected by tpm2_checkquote
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Matthias Gerstner <matthias.gerstner>
Status:	IN_PROGRESS ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	carlos.lopez
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/403689/
Whiteboard:	CVSSv3.1:SUSE:CVE-2024-29038:5.5:(AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-05-02 10:20:14 UTC

It was not checked whether the magic number in the attest is equal to TPM2_GENERATED_VALUE. So an attacker could generate arbitrary quote data which was not detected by tpm2 checkquote.

References:
https://github.com/tpm2-software/tpm2-tools/commit/66d922d6547b7b4fe4f274fb2ec10b376e0e259c

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-29038
https://bugzilla.redhat.com/show_bug.cgi?id=2278071

Comment 5 Matthias Gerstner 2024-05-03 13:36:30 UTC

So SLE-12 is generally not affected by this, since it doesn't contain the
tpm2_checkquote command yet.

Affected are the following though (I did not check LTSS):

- SUSE:SLE-15-SP4:Update/tpm2.0-tools
- SUSE:SLE-15-SP6:Update/tpm2.0-tools
- SUSE:ALP:Source:Standard:1.0/tpm2.0-tools
- openSUSE:Factory/tpm2.0-tools

I bumped the version in Factory to address this. I want to submit the Factory
package directly to ALP once it has been accepted.

The two SLE-15 submissions are already out.

Comment 7 OBSbugzilla Bot 2024-05-06 12:35:03 UTC

This is an autogenerated message for OBS integration:
This bug (1223687) was mentioned in
https://build.opensuse.org/request/show/1172162 Factory / tpm2.0-tools

Comment 9 Maintenance Automation 2024-05-14 12:30:01 UTC

SUSE-SU-2024:1636-1: An update that solves two vulnerabilities can now be installed.

Category: security (moderate)
Bug References: 1223687, 1223689
CVE References: CVE-2024-29038, CVE-2024-29039
Maintenance Incident: [SUSE:Maintenance:33669](https://smelt.suse.de/incident/33669/)
Sources used:
Basesystem Module 15-SP5 (src):
 tpm2.0-tools-5.2-150400.6.3.1
openSUSE Leap 15.4 (src):
 tpm2.0-tools-5.2-150400.6.3.1
openSUSE Leap Micro 5.3 (src):
 tpm2.0-tools-5.2-150400.6.3.1
openSUSE Leap Micro 5.4 (src):
 tpm2.0-tools-5.2-150400.6.3.1
openSUSE Leap 15.5 (src):
 tpm2.0-tools-5.2-150400.6.3.1
SUSE Linux Enterprise Micro for Rancher 5.3 (src):
 tpm2.0-tools-5.2-150400.6.3.1
SUSE Linux Enterprise Micro 5.3 (src):
 tpm2.0-tools-5.2-150400.6.3.1
SUSE Linux Enterprise Micro for Rancher 5.4 (src):
 tpm2.0-tools-5.2-150400.6.3.1
SUSE Linux Enterprise Micro 5.4 (src):
 tpm2.0-tools-5.2-150400.6.3.1
SUSE Linux Enterprise Micro 5.5 (src):
 tpm2.0-tools-5.2-150400.6.3.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.