CVE-2020-9391
Published: 25 February 2020
An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation.
Priority
Medium
CVSS 3 base score: 5.5
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(5.4.0-18.22)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.13.0-16.19)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.2.0-16.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(3.11.0-12.19)
|
|
|
Patches: Introduced by ce18d171cb7368557e6498a3ce111d7d3dc03e4d Fixed by dcde237319e626d1ec3c9d8b7613032f0fd4663a |
||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(5.4.0-1005.5)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1001.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.4.0-1001.10)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-1002.2)
|
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.0.0-1021.24~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.15.0-1030.31~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(5.4.0-1006.6)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1002.2)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.11.0-1009.9)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.3.0-1007.8~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(5.4.0-1005.5)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1001.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.10.0-1004.4)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.3.0-1008.9~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1030.32)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.0.0-1011.11~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-13.14~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(5.4.0-1004.4)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1002.2)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.4.0-1004.9)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-13.29~14.04.1)
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1002.3)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(5.6.0-1007.7)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.0.0-1010.11)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(5.4.0-1005.5)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1007.9)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.15.0-1007.9~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.0.0-1007.12~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Ignored
(was pending \[5.4.0-1006.6\] now end-of-life)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.13.0-1005.5)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.2.0-1013.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.3.0-1017.19~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.6~rc3)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.4.0-1077.82)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.4.0-1012.12)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9391
- https://git.kernel.org/linus/dcde237319e626d1ec3c9d8b7613032f0fd4663a
- http://www.openwall.com/lists/oss-security/2020/02/25/6
- https://bugzilla.redhat.com/show_bug.cgi?id=1797052
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dcde237319e626d1ec3c9d8b7613032f0fd4663a
- NVD
- Launchpad
- Debian