CVE-2020-25212

Priority
Description
A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3
could be used by local attackers to corrupt memory or possibly have
unspecified other impact because a size check is in fs/nfs/nfs4proc.c
instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.
Ubuntu-Description
It was discovered that the NFS client implementation in the Linux kernel
did not properly perform bounds checking before copying security labels in
some situations. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code.
Notes
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (5.9~rc1)
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 (4.4.0-190.220)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-119.120)
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-48.52)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-18.19)
Patches:
Break-fix:aa9c2669626ca7e5e5bab28e6caeb583fd40099b
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (4.4.0-1078.82)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1114.127)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1084.88)
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-1025.25)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-1004.4)
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):released (5.4.0-1025.25~18.04.1)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1084.88~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (4.15.0-1098.109~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1097.107~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-1026.26)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-1004.4)
Package
Upstream:released (5.9~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):released (4.15.0-1097.107)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):released (5.4.0-1026.26~18.04.1)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1085.96~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-1025.25)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-1002.2)
Package
Upstream:released (5.9~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):released (4.15.0-1085.96)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):released (5.4.0-1025.25~18.04.1)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):released (4.15.0-1071.74)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):needed
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):needed
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-119.120~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):needed
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):released (5.4.0-48.52~18.04.1)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
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 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1080.87)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1076.77)
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-1024.24)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-1001.1)
Package
Upstream:released (5.9~rc1)
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 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (4.4.0-190.220~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
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 (4.15.0-1098.108)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):DNE
Ubuntu 20.04 LTS (Focal Fossa):needed
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):needed
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1055.59~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1055.59)
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-1025.25)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-1001.1)
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):released (5.4.0-1025.25~18.04.1)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):DNE
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-1019.21)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-1002.5)
Package
Upstream:released (5.9~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):released (5.4.0-1019.21~18.04.1)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1139.148)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1072.76)
Ubuntu 20.04 LTS (Focal Fossa):ignored (was needs-triage now end-of-life)
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):needed
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
Package
Upstream:released (5.9~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):DNE
Ubuntu 20.04 LTS (Focal Fossa):released (5.4.0-34.38)
Ubuntu 20.10 (Groovy Gorilla):not-affected (5.8.0-1.1)
Package
Upstream:released (5.9~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1143.152)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1088.96)
Ubuntu 20.04 LTS (Focal Fossa):DNE
Ubuntu 20.10 (Groovy Gorilla):DNE
More Information

Updated: 2020-10-24 07:04:15 UTC (commit 69e225d81a6ee3e2e014950178db797c5d4e5009)