CVE-2019-10639

Priority
Description
The Linux kernel 4.x (starting from 4.1) and 5.x before 5.0.8 allows
Information Exposure (partial kernel address disclosure), leading to a
KASLR bypass. Specifically, it is possible to extract the KASLR kernel
image offset using the IP ID values the kernel produces for connection-less
protocols (e.g., UDP and ICMP). When such traffic is sent to multiple
destination IP addresses, it is possible to obtain hash collisions (of
indices to the counter array) and thereby obtain the hashing key (via
enumeration). This key contains enough bits from a kernel address (of a
static variable) so when the key is extracted (via enumeration), the offset
of the kernel image is exposed. This attack can be carried out remotely, by
the attacker forcing the target device to send UDP or ICMP (or certain
other) traffic to attacker-controlled IP addresses. Forcing a server to
send UDP traffic is trivial if the server is a DNS server. ICMP traffic is
trivial if the server answers ICMP Echo requests (ping). For client
targets, if the target visits the attacker's web page, then WebRTC or gQUIC
can be used to force UDP traffic to attacker-controlled IP addresses. NOTE:
this attack against KASLR became viable in 4.1 because IP ID generation was
changed to have a dependency on an address associated with a network
namespace.
Ubuntu-Description
Amit Klein and Benny Pinkas discovered that the location of kernel
addresses could be exposed by the implementation of connection-less network
protocols in the Linux kernel. A remote attacker could possibly use this to
assist in the exploitation of another vulnerability in the Linux kernel.
Notes
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (5.1~rc4)
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 (4.4.0-150.176)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-60.67)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.0.0-16.17)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-9.12)
Patches:
Introduced by
0b4419162aa6c4204843f3a13b48d9ab821d3167
Fixed by
355b98553789b646ed97ad801a619ff898471b92
Package
Upstream:released (5.1~rc4)
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 (4.4.0-1084.94)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1047.49)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.0.0-1007.7)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-1004.4)
Package
Upstream:released (5.1~rc4)
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 (5.0.0-1021.24~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1047.49~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (4.15.0-1056.61)
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1014.14~18.04.1)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.0.0-1008.8)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-1005.5)
Package
Upstream:released (5.1~rc4)
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 (5.3.0-1007.8~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1056.61)
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1014.14~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1041.43)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1042.45)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.0.0-1007.7)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-1002.2)
Package
Upstream:released (5.1~rc4)
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 (5.3.0-1008.9~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (4.15.0-1042.45)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (4.15.0-1041.43)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (5.0.0-1011.11~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-60.67~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-23.24~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-60.67~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-16.17~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1047.53)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1043.43)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.0.0-1007.7)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-1003.3)
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (4.15.0-1056.65)
Ubuntu 19.10 (Eoan Ermine):released (4.15.0-1059.68)
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
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 (Focal Fossa):not-affected (5.4.0-1002.4)
Package
Upstream:released (5.1~rc4)
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 (5.0.0-1010.11)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.0.0-1010.11)
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1022.25~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1022.25)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.3.0-1002.2)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-1003.3)
Package
Upstream:released (5.1~rc4)
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 (5.0.0-1007.12~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1110.118)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1044.47)
Ubuntu 19.10 (Eoan Ermine):not-affected (5.0.0-1009.9)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-1004.4)
Package
Upstream:released (5.1~rc4)
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 (5.3.0-1017.19~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:released (5.1~rc4)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1114.119)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1062.69)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
More Information

Updated: 2020-03-18 22:53:47 UTC (commit 2ea7df7bd1e69e1e489978d2724a936eb3faa1b8)