Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2019-12817

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.0, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 9 products from canonical, from linux, from fedoraproject and 6 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-06-25T12:15:11.030

Last Modified

2024-11-21T04:23:38.680

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	18.10	Yes
Operating System	canonical	ubuntu_linux	19.04	Yes
Operating System	linux	linux_kernel	< 5.1.15	Yes
Operating System	fedoraproject	fedora	29	Yes
Operating System	fedoraproject	fedora	30	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	opensuse	leap	15.1	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Operating System	redhat	enterprise_linux_eus	8.1	Yes
Operating System	redhat	enterprise_linux_eus	8.2	Yes
Operating System	redhat	enterprise_linux_eus	8.4	Yes
Operating System	redhat	enterprise_linux_server_aus	8.2	Yes
Operating System	redhat	enterprise_linux_server_aus	8.4	Yes
Operating System	redhat	enterprise_linux_server_tus	8.2	Yes
Operating System	redhat	enterprise_linux_server_tus	8.4	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/06/24/5 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/108884 Broken Link ([email protected])
https://access.redhat.com/errata/RHSA-2019:2703 Third Party Advisory ([email protected])
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15 Vendor Advisory ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbc Patch, Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OTLN3KQYEEWWAJYA4BUYYDMWWXCJQNV2/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WSKLL2374YGFQR6LSVCFGTTCRGBTLAWZ/ ([email protected])
https://seclists.org/bugtraq/2019/Aug/13 Mailing List, Third Party Advisory ([email protected])
https://support.f5.com/csp/article/K12876166 Third Party Advisory ([email protected])
https://support.f5.com/csp/article/K12876166?utm_source=f5support&amp%3Butm_medium=RSS ([email protected])
https://usn.ubuntu.com/4031-1/ Third Party Advisory ([email protected])
https://www.debian.org/security/2019/dsa-4495 Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/06/24/5 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/108884 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:2703 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbc Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OTLN3KQYEEWWAJYA4BUYYDMWWXCJQNV2/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WSKLL2374YGFQR6LSVCFGTTCRGBTLAWZ/ (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Aug/13 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.f5.com/csp/article/K12876166 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.f5.com/csp/article/K12876166?utm_source=f5support&amp%3Butm_medium=RSS (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4031-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2019/dsa-4495 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For canonical's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.