SUSE-SU-2018:1482-1 Security update for the Linux Kernel
Not scored
Published
Check this codebase for SUSE-SU-2018:1482-1 and fix it if it is affected.
What it is: SUSE-SU-2018:1482-1 is a vulnerability in kernel-bigmem, published on 31 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of SUSE-SU-2018:1482-1 in the wild and no public exploit code.
Affected product: kernel-bigmem. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/SUSE-SU-2018-1482-1/ (Markdown: https://insights.sbomify.com/SUSE-SU-2018-1482-1/index.md)
Local attackers can exploit speculative execution flaws in the Linux kernel to read sensitive memory, requiring a kernel patch.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is SUSE-SU-2018:1482-1?
SUSE-SU-2018:1482-1 is a vulnerability in kernel-bigmem, published on 31 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.
This update main focus is a regression fix in SystemV IPC handling. (bsc#1093600)
The following non-security bugs were fixed:
- Drop cBPF SSBD as classic BPF does not really have a proper concept of pointers, and without eBPF maps the out-of-bounds access in speculative execution branch can't be mounted. Moreoever, seccomp BPF uses only such a subset of BPF that can only do absolute indexing, and therefore seccomp data buffer boundarier can't be crossed. Information condensed from Alexei and Kees.
- ibrs used instead of retpoline on Haswell processor with spectre_v2=retpoline (bsc#1092497)
- ib/mlx4: Convert slave port before building address-handle (bug#919382 FATE#317529).
- KABI protect struct _lowcore (bsc#1089386).
- Update config files, add Spectre mitigation for s390x (bnc#1089386, LTC#166572).
- Update s390 config files (bsc#1089386).
- fanotify: fix logic of events on child (bsc#1013018).
- ipc/msg: Fix faulty parsing of msgctl args (bsc#1093600,bsc#1072689).
- ocfs2/dlm: Fix up kABI in dlm_ctxt (bsc#1070404).
- ocfs2/dlm: wait for dlm recovery done when migrating all lock resources (bsc#1013018).
- powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits (bsc#1087082).
- powerpc: Fix /proc/cpuinfo revision for POWER9 DD2 (FATE#325713, bsc#1093710).
- s390/cio: update chpid descriptor after resource accessibility event (bnc#1091659, LTC#167429).
- s390/dasd: fix IO error for newly defined devices (bnc#1091659, LTC#167398).
- s390/qdio: fix access to uninitialized qdio_q fields (bnc#1091659, LTC#168037).
- s390/qeth: on channel error, reject further cmd requests (bnc#1088343, LTC#165985).
- s390: add automatic detection of the spectre defense (bnc#1089386, LTC#166572).
- s390: add optimized array_index_mask_nospec (bnc#1089386, LTC#166572).
- s390: add sysfs attributes for spectre (bnc#1089386, LTC#166572).
- s390: correct module section names for expoline code revert (bsc#1089386).
- s390: correct nospec auto detection init order (bnc#1089386, LTC#166572).
- s390: do not bypass BPENTER for interrupt system calls (bnc#1089386, LTC#166572).
- s390: fix retpoline build on 31bit (bsc#1089386).
- s390: improve cpu alternative handling for gmb and nobp (bnc#1089386, LTC#166572).
- s390: introduce execute-trampolines for branches (bnc#1089386, LTC#166572).
- s390: move nobp parameter functions to nospec-branch.c (bnc#1089386, LTC#166572).
- s390: report spectre mitigation via syslog (bnc#1089386, LTC#166572).
- s390: run user space and KVM guests with modified branch prediction (bnc#1089386, LTC#166572).
- s390: scrub registers on kernel entry and KVM exit (bnc#1089386, LTC#166572).
- x86, mce: Fix mce_start_timer semantics (bsc#1090607).
- x86/kaiser: symbol kaiser_set_shadow_pgd() exported with non GPL
Which versions are affected by SUSE-SU-2018:1482-1?
Linux distribution packages (19)
kernel-bigmem SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-default SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-ec2 SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-pae SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-ppc64 SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-source SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-syms SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-trace SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-xen SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-bigmem SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-default SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-ec2 SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-pae SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-ppc64 SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-source SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-syms SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-trace SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-xen SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.101-108.52.1 |
kernel-docs SUSE:Linux Enterprise Software Development Kit 11 SP4 | All versions | 3.0.101-108.52.2 |
How do I fix SUSE-SU-2018:1482-1?
Apply the vendor's patch.
Is SUSE-SU-2018:1482-1 being exploited?
There is no known exploitation of SUSE-SU-2018:1482-1 in the wild and no public exploit code.