Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1959674
| Summary: | CVE-2021-32606 kernel: isotp_setsockopt in net/can/isotp.c allows privilege escalation via use-after-free [fedora-all] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Marian Rehak <mrehak> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 34 | CC: | acaringi, adscvr, airlied, alciregi, bskeggs, hdegoede, jarodwilson, jeremy, jforbes, jglisse, jonathan, josef, jwboyer, kernel-maint, lgoncalv, linville, masami256, mchehab, ptalbert, s.bennett, steved |
| Target Milestone: | --- | Keywords: | Security, SecurityTracking |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-5.11.21-300.fc34 kernel-5.11.21-200.fc33 kernel-5.11.21-100.fc32 | Doc Type: | No Doc Update |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-05-20 01:11:52 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1959673 | ||
|
Description
Marian Rehak
2021-05-12 05:01:24 UTC
Use the following template to for the 'fedpkg update' request to submit an update for this issue as it contains the top-level parent bug(s) as well as this tracking bug. This will ensure that all associated bugs get updated when new packages are pushed to stable. ===== # bugfix, security, enhancement, newpackage (required) type=security # low, medium, high, urgent (required) severity=high # testing, stable request=testing # Bug numbers: 1234,9876 bugs=1959673,1959674 # Description of your update notes=Security fix for [PUT CVEs HERE] # Enable request automation based on the stable/unstable karma thresholds autokarma=True stable_karma=3 unstable_karma=-3 # Automatically close bugs when this marked as stable close_bugs=True # Suggest that users restart after update suggest_reboot=False ====== Additionally, you may opt to use the bodhi web interface to submit updates: https://bodhi.fedoraproject.org/updates/new Am I correct in assuming that on a system that does not use CAN, the following would be a sufficient mitigation?
grep -q can-isotp /etc/modules-load.d/blacklist.conf 2>/dev/null || echo "blacklist can-isotp" >> /etc/modules-load.d/blacklist.conf
FEDORA-2021-bae582b42c has been submitted as an update to Fedora 34. https://bodhi.fedoraproject.org/updates/FEDORA-2021-bae582b42c FEDORA-2021-8832eab899 has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2021-8832eab899 FEDORA-2021-4f852b79d1 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2021-4f852b79d1 FEDORA-2021-4f852b79d1 has been pushed to the Fedora 33 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-4f852b79d1` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-4f852b79d1 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2021-bae582b42c has been pushed to the Fedora 34 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-bae582b42c` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-bae582b42c See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2021-8832eab899 has been pushed to the Fedora 32 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-8832eab899` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-8832eab899 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2021-bae582b42c has been pushed to the Fedora 34 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2021-4f852b79d1 has been pushed to the Fedora 33 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2021-8832eab899 has been pushed to the Fedora 32 stable repository. If problem still persists, please make note of it in this bug report. |