Medium severity · published Sep 4, 2019
CVE-2019-15902
A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x…
5.6
CVSS
0.6%
EPSS
No
On KEV
Description
A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream "x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.4 through 4.4.190; 4.9 through 4.9.190; 4.14 through 4.14.141; 4.19 through 4.19.69; 5.2 through 5.2.11 · source: NVD
AI
Active IQ Performance Analytics Services · Netapp
All versions, or not specified · source: NVD
BM
Baseboard Management Controller Firmware · Netapp
All versions, or not specified · source: NVD
DL
Debian Linux · Debian
8.0; 9.0; 10.0 · source: NVD
LE
Leap · Opensuse
15.0; 15.1 · source: NVD
SP
Service Processor · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-15902
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-15902
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
Exploit
https://grsecurity.net/teardown_of_a_failed_linux_lts_spectre_fix.php
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html
Mailing List
https://seclists.org/bugtraq/2019/Sep/41
Third Party Advisory
https://security.netapp.com/advisory/ntap-20191004-0001/
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