Bug 1303532 (CVE-2015-8812)
| Summary: | CVE-2015-8812 kernel: CXGB3: Logic bug in return code handling prematurely frees key structures causing Use after free or kernel panic. | ||
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| Product: | [Other] Security Response | Reporter: | Wade Mealing <wmealing> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | aquini, dhoward, fhrbata, joelsmith, kernel-mgr, kstutsma, nmurray, rvrbovsk, security-response-team, slong |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
A use-after-free flaw was found in the CXGB3 kernel driver when the network was considered to be congested. The kernel incorrectly misinterpreted the congestion as an error condition and incorrectly freed or cleaned up the socket buffer (skb). When the device then sent the skb's queued data, these structures were referenced. A local attacker could use this flaw to panic the system (denial of service) or, with a local account, escalate their privileges.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-10-21 00:50:17 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: | 1309548 | ||
| Bug Blocks: | 1247078, 1247626 | ||
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Description
Wade Mealing
2016-02-01 08:32:11 UTC
Statement: This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 5, 6 and 7 and Red Hat Enterprise MRG 2 and realtime kernels and may be addressed in a future update. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates in Red Hat Enterprise Linux 5 and 6 . For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. Acknowledgements: Name: Venkatesh Pottem (Red Hat Engineering) Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1309548] kernel-4.3.6-201.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. kernel-4.4.2-301.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report. kernel-4.4.3-201.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2016:2574 https://rhn.redhat.com/errata/RHSA-2016-2574.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2016:2584 https://rhn.redhat.com/errata/RHSA-2016-2584.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2016:2574 https://rhn.redhat.com/errata/RHSA-2016-2574.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2016:2584 https://rhn.redhat.com/errata/RHSA-2016-2584.html |