CVE-2019-15902
Published: 4 September 2019
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.
From the Ubuntu Security Team
Brad Spengler discovered that a Spectre mitigation was improperly implemented in the ptrace susbsystem of the Linux kernel. A local attacker could possibly use this to expose sensitive information.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-66.75)
|
| disco |
Released
(5.0.0-32.34)
|
|
| eoan |
Not vulnerable
(5.0.0-13.14)
|
|
| focal |
Not vulnerable
(5.4.0-9.12)
|
|
| trusty |
Ignored
(was needs-triage ESM criteria)
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.4.0-166.195)
|
|
|
Patches: Introduced by Fixed by local-2019-15902-fix |
||
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1052.54)
|
| disco |
Released
(5.0.0-1019.21)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Released
(4.4.0-1056.60)
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.4.0-1096.107)
|
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1021.24~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.15.0-1052.54~16.04.1)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1023.24~18.04.1)
|
| disco |
Released
(5.0.0-1023.24)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1006.6)
|
|
| trusty |
Released
(4.15.0-1061.66~14.04.1)
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.15.0-1061.66)
|
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1007.8~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1023.24~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.15.0-1061.66)
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1021.21~18.04.1)
|
| disco |
Released
(5.0.0-1021.21)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.15.0-1047.50)
|
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1008.9~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1021.21~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1046.49)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1023.23~18.04.2)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-32.34~18.04.2)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.15.0-66.75~16.04.1)
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-15.16~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.15.0-66.75~16.04.1)
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1048.48)
|
| disco |
Released
(5.0.0-1020.21)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1004.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.4.0-1060.67)
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Released
(4.4.0-166.195~14.04.1)
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1059.68)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(4.15.0-1059.68)
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Ignored
(was needs-triage now end-of-life)
|
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| focal |
Not vulnerable
(5.4.0-1002.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1025.28)
|
| disco |
Ignored
(was pending \[5.0.0-1025.28\] now end-of-life)
|
|
| eoan |
Not vulnerable
(5.0.0-1010.11)
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1027.30)
|
| disco |
Ignored
(was pending \[5.0.0-1005.9\] now end-of-life)
|
|
| eoan |
Not vulnerable
(4.15.0-1011.13)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.15.0-1027.30~16.04.1)
|
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1007.12~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1049.53)
|
| disco |
Released
(5.0.0-1020.20)
|
|
| eoan |
Not vulnerable
(5.0.0-1006.6)
|
|
| focal |
Not vulnerable
(5.4.0-1004.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.4.0-1124.133)
|
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1017.19~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1066.73)
|
| disco |
Released
(5.0.0-1024.25)
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.6.12~rc2)
|
|
| xenial |
Released
(4.4.0-1128.136)
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.6 |
| Attack vector | Local |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15902
- https://grsecurity.net/teardown_of_a_failed_linux_lts_spectre_fix.php
- https://ubuntu.com/security/notices/USN-4157-1
- https://ubuntu.com/security/notices/USN-4162-1
- https://ubuntu.com/security/notices/USN-4163-1
- https://ubuntu.com/security/notices/USN-4157-2
- https://ubuntu.com/security/notices/USN-4162-2
- https://ubuntu.com/security/notices/USN-4163-2
- NVD
- Launchpad
- Debian