Bug 1961300 (CVE-2021-33033)
| Summary: | CVE-2021-33033 kernel: use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
| 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, adscvr, airlied, alciregi, allarkin, atenart, bdettelb, bhu, blc, bmasney, brdeoliv, bskeggs, chwhite, crwood, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarodwilson, jeremy, jforbes, jglisse, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, mlangsdo, nmurray, ptalbert, qzhao, rvrbovsk, steved, tomckay, walters, wcosta, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Kernel 5.12 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw use-after-free in the Linux kernel CIPSO network packet labeling protocol functionality was found in the way user open local network connection with the usage of the security labeling that is IP option number 134. A local user could use this flaw to crash the system or possibly escalate their privileges on the system.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-07-21 03:54:44 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: | 1966980, 1961301, 1967720, 1967721, 1967722, 1967723, 1967724, 1967725 | ||
| Bug Blocks: | 1961302 | ||
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Description
Guilherme de Almeida Suckevicz
2021-05-17 16:31:57 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1961301] This was fixed for Fedora users with the 5.11.14 stable kernel updates. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2021:2725 https://access.redhat.com/errata/RHSA-2021:2725 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2021:2726 https://access.redhat.com/errata/RHSA-2021:2726 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-2021-33033 |