CVE-2019-12817: canonical ubuntu_linux Out-of-bounds Write
Vulnerability summary
CVE-2019-12817 is a high (CVSS 7.0) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.7% of scored vulnerabilities.
Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 5Timeline
- 25-06-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.39% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu9 products
- linux-azure-fdeAll versions (No fix recorded)
- linux-gkeAll versions (No fix recorded)
- linux-hwe< 4.18.0-24.25~18.04.1
- linux-hwe-edge< 5.0.0-19.20~18.04.1
- linux-intel-iot-realtimeAll versions (No fix recorded)
Redhat4 products
- enterprise_linux8.0
- enterprise_linux_eus8.1 | 8.2 | 8.4
- enterprise_linux_server_aus8.2 | 8.4
- enterprise_linux_server_tus8.2 | 8.4
Debian2 products
- linux< 5.2.6-1
- debian_linuxEOL9.0 | 10.0
Canonical1 product
- ubuntu_linuxEOL18.04 | 18.10 | 19.04
Fedoraproject1 product
- fedoraEOL29 | 30
Linux1 product
- linux_kernel< 5.1.15
Opensuse1 product
- leapEOL15.1
Suse1 product
- kernel-livepatch-SLE15-SP1_Update_1&distro=SUSE Linux Enterprise Live Patching 15 SP1< 2-2.1
8 vendors · 20 products
References
20 links- lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
