Bug 1601642 (CVE-2018-10907)
| Summary: | CVE-2018-10907 glusterfs: Stack-based buffer overflow in server-rpc-fops.c allows remote attackers to execute arbitrary code | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Sam Fowler <sfowler> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | abhgupta, amukherj, anoopcs, atumball, bmcclain, dbaker, dblechte, dfediuck, eedri, humble.devassy, jokerman, jonathansteffan, kkeithle, matthias, mgoldboi, michal.skrivanek, ndevos, public, ramkrsna, rhs-bugs, sankarshan, sbonazzo, security-response-team, sfowler, sherold, sisharma, ssaha, sthangav, trankin, vbellur |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | glusterfs-3.12.14, glusterfs-4.1.4 | Doc Type: | If docs needed, set a value |
| Doc Text: |
It was found that glusterfs server is vulnerable to mulitple stack based buffer overflows due to functions in server-rpc-fopc.c allocating fixed size buffers using 'alloca(3)'. An authenticated attacker could exploit this by mounting a gluster volume and sending a string longer that the fixed buffer size to cause crash or potential code execution.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-06-10 10:32:39 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: | 1605227, 1607211, 1616829, 1625080, 1625083, 1625097, 1625654 | ||
| Bug Blocks: | 1601660 | ||
|
Description
Sam Fowler
2018-07-17 00:21:05 UTC
Acknowledgments: Name: Michael Hanselmann (hansmi.ch) Statement: This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there. This flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. Created glusterfs tracking bugs for this issue: Affects: fedora-all [bug 1625080] This issue has been addressed in the following products: Red Hat Gluster Storage 3.4 for RHEL 7 Native Client for RHEL 7 for Red Hat Storage Via RHSA-2018:2607 https://access.redhat.com/errata/RHSA-2018:2607 This issue has been addressed in the following products: Red Hat Gluster Storage 3.4 for RHEL 6 Native Client for RHEL 6 for Red Hat Storage Via RHSA-2018:2608 https://access.redhat.com/errata/RHSA-2018:2608 upstream fix: https://review.gluster.org/21070 Mitigation: To limit exposure of gluster server nodes : 1. gluster server should be on LAN and not reachable from public networks. 2. Use gluster auth.allow and auth.reject. 3. Use TLS certificates to authenticate gluster clients. caveat: This does not protect from attacks by authenticated gluster clients. This issue has been addressed in the following products: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 Via RHSA-2018:3470 https://access.redhat.com/errata/RHSA-2018:3470 |