CVE-2017-18241

Priority
Description
fs/f2fs/segment.c in the Linux kernel before 4.13 allows local users to
cause a denial of service (NULL pointer dereference and panic) by using a
noflush_merge option that triggers a NULL value for a flush_cmd_control
data structure.
Ubuntu-Description
It was discovered that the f2fs filesystem implementation in the Linux
kernel did not handle the noflush_merge mount option correctly. An attacker
could use this to cause a denial of service (system crash).
Notes
ppisatifixes a case in the F2FS_FS, when the fs is mounted with the
'noflush_merge' option, but support for flush coalition was introduced in:
6b4afdd794783fe515b50838aa36591e3feea990
tyhicksThe affected user base for this issue is likely small since f2fs is
not the default filesystem and it is not widely used in Ubuntu
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):ignored (was needed ESM criteria)
Ubuntu 14.04 ESM (Trusty Tahr):not-affected (3.11.0-12.19)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-143.169)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.13.0-16.19)
Ubuntu 19.04 (Disco Dingo):not-affected (4.18.0-10.11)
Patches:
Introduced by
6b4afdd794783fe515b50838aa36591e3feea990
Fixed by
d4fdf8ba0e5808ba9ad6b44337783bd9935e0982
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (4.4.0-1039.42)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1077.87)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.15.0-1001.1)
Ubuntu 19.04 (Disco Dingo):not-affected (4.18.0-1002.3)
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.15.0-1030.31~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):not-affected (4.15.0-1023.24~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-1005.7)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.15.0-1002.2)
Ubuntu 19.04 (Disco Dingo):not-affected (4.18.0-1003.3)
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.13.0-1003.3)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.18.0-1006.6~18.04.1)
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needed ESM criteria)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-1002.5)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.15.0-1001.1)
Ubuntu 19.04 (Disco Dingo):not-affected (4.18.0-1002.3)
Package
Upstream:released (4.13~rc1)
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 (4.18.0-1004.5~18.04.1)
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needed now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needed now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-26.29~16.04.2)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.18.0-13.14~18.04.1)
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-26.29~16.04.2)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.18.0-13.14~18.04.1)
Ubuntu 19.04 (Disco Dingo):DNE
Product
linux-krillin:ignored (was needed now end-of-life)
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1041.47)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.15.0-1002.2)
Ubuntu 19.04 (Disco Dingo):not-affected (4.18.0-1003.3)
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):ignored (was needed ESM criteria)
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [out of standard support])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [was needs-triage now end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [out of standard support])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (4.4.0-143.169~14.04.2)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.13.0-1008.9)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.15.0-1002.3)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1021.24)
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.15.0-1007.9~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.15.0-1007.9)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1007.9)
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1104.112)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.13.0-1005.5)
Ubuntu 19.04 (Disco Dingo):not-affected (4.18.0-1005.7)
Package
Upstream:released (4.13~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1108.113)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected
Ubuntu 19.04 (Disco Dingo):DNE
Product
linux-vegetahd:ignored (was needed now end-of-life)
More Information

Updated: 2019-12-05 18:48:45 UTC (commit dd38ff22974aae499eb50644b9d5a2817483cbdb)