High severity · published Jun 25, 2019
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…
7.0
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 5.1.15 · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
EL
Enterprise Linux · Redhat
8.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
8.1; 8.2; 8.4 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
8.2; 8.4 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
8.2; 8.4 · source: NVD
FE
Fedora · Fedoraproject
29; 30 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
UL
Ubuntu Linux · Canonical
18.04; 18.10; 19.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-12817
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-12817
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
Mailing List
http://www.openwall.com/lists/oss-security/2019/06/24/5
Broken Link
http://www.securityfocus.com/bid/108884
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2703
Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbc
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