Bug 1511899 (CVE-2017-14746)
| Summary: | CVE-2017-14746 samba: Use-after-free in processing SMB1 requests | ||
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| Product: | [Other] Security Response | Reporter: | Huzaifa S. Sidhpurwala <huzaifas> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | abokovoy, anoopcs, asn, gdeschner, jarrpa, kabbott, lmohanty, madam, mjc, newman.chuck, sbose, security-response-team, sisharma, ssorce, vdas, yersinia.spiros |
| 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 use-after-free flaw was found in the way samba servers handled certain SMB1 requests. An unauthenticated attacker could send specially-crafted SMB1 requests to cause the server to crash or execute arbitrary code.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-06-08 03:30:57 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: | 1512817, 1514313, 1514314, 1514315, 1514316, 1515692, 1531098 | ||
| Bug Blocks: | 1512469 | ||
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Description
Huzaifa S. Sidhpurwala
2017-11-10 11:53:16 UTC
Mitigation: Prevent SMB1 access to the server by setting the parameter: "server min protocol = SMB2" to the [global] section of your smb.conf and restart smbd. This prevents and SMB1 access to the server. Note this could cause older clients to be unable to connect to the server. Acknowledgements: Name: the Samba project Upstream: Yihan Lian (Qihoo 360 Gear Team), Zhibin Hu (Qihoo 360 Gear Team) External References: https://www.samba.org/samba/security/CVE-2017-14746.html Created samba tracking bugs for this issue: Affects: fedora-all [bug 1515692] This issue has been addressed in the following products: Red Hat Gluster Storage 3.3 for RHEL 6 Red Hat Gluster Storage 3.3 for RHEL 7 Via RHSA-2017:3261 https://access.redhat.com/errata/RHSA-2017:3261 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2017:3260 https://access.redhat.com/errata/RHSA-2017:3260 This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2017:3278 https://access.redhat.com/errata/RHSA-2017:3278 |