Upstream information
Description
An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels before 4.9.187.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 7.2 |
| Vector | AV:L/AC:L/Au:N/C:C/I:C/A:C |
| Access Vector | Local |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | Complete |
| Integrity Impact | Complete |
| Availability Impact | Complete |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 7.8 | 5.5 |
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Access Vector | Local | Local |
| Access Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | High | None |
| Integrity Impact | High | None |
| Availability Impact | High | High |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.
| Product(s) | Source package | State |
|---|---|---|
| SUSE Linux Enterprise Desktop 12 SP3 | kernel-source | Affected |
| SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 12 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 GA | kernel-source | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 GA | kernel-source | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Affected |
| SUSE Linux Enterprise Server 11 SP3 LTSS | kernel-source | Affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-source | Affected |
| SUSE Linux Enterprise Server 12 GA LTSS | kernel-source | Affected |
| SUSE Linux Enterprise Server 12 SP1 LTSS | kernel-source | Affected |
| SUSE Linux Enterprise Server 12 SP2 LTSS | kernel-source | Affected |
| SUSE Linux Enterprise Server 12 SP3 | kernel-source | Affected |
| SUSE Linux Enterprise Server 12 SP3 LTSS | kernel-source | Affected |
| SUSE Linux Enterprise Server 12 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 11 SP3 | kernel-source | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 GA | kernel-source | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-source | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Already fixed |
