Bug 1886285 (CVE-2020-26541)
| Summary: | CVE-2020-26541 kernel: security bypass in certs/blacklist.c and certs/system_keyring.c | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Dhananjay Arunesh <darunesh> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, airlied, bhu, blc, bmasney, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jpazdziora, jross, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mbenatto, mchehab, mcressma, mjg59, mlangsdo, nmurray, ptalbert, qzhao, rkeshri, rt-maint, rvrbovsk, sgrubb, steved, walters, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A flaw was found in the Linux kernel in certs/blacklist.c, When signature entries for EFI_CERT_X509_GUID are contained in the Secure Boot Forbidden Signature Database, the entries are skipped. This can cause a security threat and breach system integrity, confidentiality and even lead to a denial of service problem.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-06-29 16:40:35 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: | 1886287, 1890097, 1890098, 1890099, 1890100, 1890101, 1890102, 1890103, 1893793, 1893794, 1893795, 1906358, 1906359, 1906360, 1906361, 1906362, 1911193, 1965270, 1965271 | ||
| Bug Blocks: | 1886288 | ||
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Description
Dhananjay Arunesh
2020-10-08 06:21:18 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1886287] Mitigation: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:2599 https://access.redhat.com/errata/RHSA-2021:2599 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:2570 https://access.redhat.com/errata/RHSA-2021:2570 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-26541 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.1 Extended Update Support Via RHSA-2021:2666 https://access.redhat.com/errata/RHSA-2021:2666 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Extended Update Support Via RHSA-2021:2719 https://access.redhat.com/errata/RHSA-2021:2719 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Extended Update Support Via RHSA-2021:2718 https://access.redhat.com/errata/RHSA-2021:2718 |