Bug 1419916 (CVE-2017-2618)
Summary: | CVE-2017-2618 kernel: Off-by-one error in selinux_setprocattr (/proc/self/attr/fscreate) | ||
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Product: | [Other] Security Response | Reporter: | Adam Mariš <amaris> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | apevec, aquini, ayoung, bhu, bkearney, cbillett, chrisw, cvsbot-xmlrpc, dhoward, dominik.mierzejewski, dwalsh, fhrbata, iboverma, jjoyce, jkacur, jross, jschluet, kbasil, kernel-mgr, lgoncalv, lhh, lpeer, lvrabec, markmc, matt, mcressma, mmalik, nmurray, pholasek, plautrba, plougher, rbryant, rvrbovsk, sclewis, security-response-team, slawomir, ssekidde, tdecacqu, tomckay, williams, wmealing |
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's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2019-06-08 03:07:09 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: | 1422368, 1422369, 1422370, 1422371, 1422372, 1422373, 1422717 | ||
Bug Blocks: | 1419918 |
Description
Adam Mariš
2017-02-07 11:59:42 UTC
To be clear, the problem is not with libselinux but the kernel itself (see the proposed patch in the original problem description). (In reply to Paul Moore from comment #2) > To be clear, the problem is not with libselinux but the kernel itself (see > the proposed patch in the original problem description). Ah, sorry, my fault. Fixed! Statement: This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 due to a missing commit ( bb646cdb12e75d82258c2f2e7746d5952d3e321a ) which enabled changed system behavior. This issue does affect Red Hat Enteprise Linux 7 and MRG-2 kernels. A future Linux kernel updates for the respective releases may address this issue. Acknowledgements: Name: Paul Moore (Red Hat Engineering) Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1422717] This issue has been addressed in the following products: Red Hat Enterprise MRG 2 Via RHSA-2017:0932 https://access.redhat.com/errata/RHSA-2017:0932 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2017:0931 https://access.redhat.com/errata/RHSA-2017:0931 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2017:0933 https://access.redhat.com/errata/RHSA-2017:0933 |