CVE-2020-8648

Priority
Description
There is a use-after-free vulnerability in the Linux kernel through 5.5.2
in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.
Ubuntu-Description
It was discovered that the virtual terminal implementation in the Linux
kernel contained a race condition. A local attacker could possibly use this
to cause a denial of service (system crash) or expose sensitive
information.
Notes
cascardoThis looks like a race between set_selection_kernel and
paste_selection that may lead to data leak.
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):ignored (was needs-triage ESM criteria)
Ubuntu 14.04 ESM (Trusty Tahr):ignored (was needs-triage ESM criteria)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-178.208)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-99.100)
Ubuntu 19.10 (Eoan Ermine):released (5.3.0-51.44)
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-21.25)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-26.30)
Patches:
Introduced by
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by
07e6124a1a46b4b5a9b3cacc0c306b50da87abf5
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (4.4.0-1066.70)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1106.117)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1066.70)
Ubuntu 19.10 (Eoan Ermine):released (5.3.0-1017.18)
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-1007.7)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-1009.9)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needed now end-of-life)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.3.0-1017.18~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1066.70~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):ignored (was needs-triage ESM criteria)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1082.92~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needed now end-of-life)
Ubuntu 19.10 (Eoan Ermine):released (5.3.0-1020.21)
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-1008.8)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-1010.10)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.15.0-1082.92)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.3.0-1020.21~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needs-triage now end-of-life)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1061.65)
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needed now end-of-life)
Ubuntu 19.10 (Eoan Ermine):released (5.3.0-1018.19)
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-1007.7)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-1009.9)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.3.0-1018.19~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needs-triage now end-of-life)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1058.61)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1035.36)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.3.0-1018.19~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-99.100~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):released (5.3.0-51.44~18.04.2)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needs-triage now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needs-triage now end-of-life)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1070.77)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1059.60)
Ubuntu 19.10 (Eoan Ermine):released (5.3.0-1016.17)
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-1006.6)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-1009.9)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):ignored (was needs-triage ESM criteria)
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (4.4.0-178.208~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needs-triage now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1080.90)
Ubuntu 19.10 (Eoan Ermine):pending (4.15.0-1080.90)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.6.0-1007.7)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.6.0-1007.7)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1050.55)
Ubuntu 19.10 (Eoan Ermine):pending (5.0.0-1050.55)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1038.42~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1038.42)
Ubuntu 19.10 (Eoan Ermine):released (5.3.0-1016.18)
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-1007.7)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-1009.9)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needed now end-of-life)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.3.0-1016.18~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-1007.7)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-1008.8)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1132.141)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1061.65)
Ubuntu 19.10 (Eoan Ermine):released (5.3.0-1023.25)
Ubuntu 20.04 LTS (Focal Fossa):ignored (was needs-triage now end-of-life)
Ubuntu 20.10 (Groovy Gorilla):ignored (was needs-triage now end-of-life)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.3.0-1023.25~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):not-affected (5.4.0-24.28)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.4.0-24.28)
Package
Upstream:released (5.6~rc3)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1136.144)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1077.84)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
More Information

Updated: 2020-05-24 06:14:17 UTC (commit 8653d71f6a9b86ef72ae3a20a2fb0df4623e44e6)