Bug 1876788 (CVE-2020-14390)
Summary: | CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback | ||
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Product: | [Other] Security Response | Reporter: | msiddiqu |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED WONTFIX | QA Contact: | |
Severity: | low | Docs Contact: | |
Priority: | low | ||
Version: | unspecified | CC: | acaringi, airlied, bhu, blc, bmasney, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, mcressma, mjg59, mlangsdo, nmurray, ptalbert, qzhao, rt-maint, rvrbovsk, security-response-team, steved, williams |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Linux kernel 5.9-rc6 | Doc Type: | If docs needed, set a value |
Doc Text: |
A flaw was found in the Linux kernel. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2021-11-07 11:16:04 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: | 1879955, 1881438, 1881439, 1881440, 1881441, 1881442, 1881446, 1881447, 1881448, 1881449, 1881450 | ||
Bug Blocks: | 1876438 |
Description
msiddiqu
2020-09-08 07:43:51 UTC
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. Acknowledgments: Name: Yuan Ming (Tsinghua University) Statement: Due to this flaw requiring a local user to trigger by using frame buffer fbcon, the impact has been rated as Low. References: https://www.openwall.com/lists/oss-security/2020/09/15/2 https://seclists.org/oss-sec/2020/q3/174 Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1879955] This was fixed for Fedora with the 5.8.10 stable kernel updates. Before closing, checked that for the rhel-9 fixed. |