Bug 1959674
Summary: | CVE-2021-32606 kernel: isotp_setsockopt in net/can/isotp.c allows privilege escalation via use-after-free [fedora-all] | ||
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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. |