Description
The pnv_lpc_do_eccb function in hw/ppc/pnv_lpc.c in Qemu before 3.1 allows out-of-bounds write or read access to PowerNV memory.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 1:3.1+dfsg-1 | — |
| Debian 13 | qemu | 1:3.1+dfsg-1 | — |
| Debian 12 | qemu | 1:3.1+dfsg-1 | — |
| Debian 9 | qemu | 1:2.8+dfsg-6+deb9u6 | DSA-4454-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.8 | USN-3826-1 |
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.33 | USN-3826-1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.44 | USN-3826-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | qemu | 2.11.2-9.20.1 | SUSE-SU-2019:0423-1 |
| SLES 12 SP4 | qemu | 2.11.2-5.8.1 | SUSE-SU-2019:0435-1 |
| SLES 12 SP3 | qemu | 2.9.1-6.28.1 | SUSE-SU-2019:0582-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | qemu | 2.11.2-5.8.1 | SUSE-SU-2019:0435-1 |
| SLES for SAP 12 SP3 | qemu | 2.9.1-6.28.1 | SUSE-SU-2019:0582-1 |
Advisories 5
- USN-3826-1 qemu vulnerabilities Ubuntu Security Notices (USN) · May 4, 2026
- DSA-4454-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:0423-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0435-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0582-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
References
- USN-3826-1 vendor-advisory
- [oss-security] 20181107 CVE-2018-18954 QEMU: ppc64: Out-of-bounds r/w stack access in pnv_lpc_do_eccb mailing-list
- 105920 vdb-entry
- [Qemu-devel] 20181103 [PATCH v2] ppc/pnv: check size before data buffer access mailing-list
- openSUSE-SU-2019:1074 vendor-advisory
- DSA-4454 vendor-advisory
- 20190531 [SECURITY] [DSA 4454-1] qemu security update mailing-list