CVE-2019-10638

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

In the Linux kernel before 5.1.7, a device can be tracked by an attacker 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). An attack may be conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses.

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.7

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.8

https://github.com/torvalds/linux/commit/55f0fc7a02de8f12757f4937143d8d5091b2e40b

https://arxiv.org/pdf/1906.10478.pdf

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=355b98553789b646ed97ad801a619ff898471b92

https://github.com/torvalds/linux/commit/df453700e8d81b1bdafdf684365ee2b9431fb702

https://github.com/torvalds/linux/commit/355b98553789b646ed97ad801a619ff898471b92

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=df453700e8d81b1bdafdf684365ee2b9431fb702

http://www.securityfocus.com/bid/109092

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html

https://security.netapp.com/advisory/ntap-20190806-0001/

https://www.debian.org/security/2019/dsa-4495

https://seclists.org/bugtraq/2019/Aug/13

https://www.debian.org/security/2019/dsa-4497

https://seclists.org/bugtraq/2019/Aug/18

https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html

https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html

https://usn.ubuntu.com/4114-1/

https://usn.ubuntu.com/4117-1/

https://usn.ubuntu.com/4116-1/

https://usn.ubuntu.com/4115-1/

https://usn.ubuntu.com/4118-1/

https://access.redhat.com/errata/RHSA-2019:3309

https://access.redhat.com/errata/RHSA-2019:3517

https://seclists.org/bugtraq/2019/Nov/11

http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html

https://www.oracle.com/security-alerts/cpuApr2021.html

Details

Source: MITRE

Published: 2019-07-05

Updated: 2021-06-14

Type: CWE-326

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tenable Plugins

View all (35 total)

IDNameProductFamilySeverity
145665CentOS 8 : kernel (CESA-2019:3517)NessusCentOS Local Security Checks
critical
141374OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0044)NessusOracleVM Local Security Checks
critical
140499Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5845)NessusOracle Linux Local Security Checks
critical
140361OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0041)NessusOracleVM Local Security Checks
medium
140208Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5837)NessusOracle Linux Local Security Checks
medium
135813Scientific Linux Security Update : kernel on SL7.x x86_64 (20200407)NessusScientific Linux Local Security Checks
high
135316CentOS 7 : kernel (CESA-2020:1016)NessusCentOS Local Security Checks
high
135080RHEL 7 : kernel (RHSA-2020:1016)NessusRed Hat Local Security Checks
high
135078RHEL 7 : kernel-rt (RHSA-2020:1070)NessusRed Hat Local Security Checks
high
130751Slackware 14.2 : Slackware 14.2 kernel (SSA:2019-311-01)NessusSlackware Local Security Checks
critical
130663EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-2201)NessusHuawei Local Security Checks
critical
130547RHEL 8 : kernel (RHSA-2019:3517)NessusRed Hat Local Security Checks
critical
130526RHEL 8 : kernel-rt (RHSA-2019:3309)NessusRed Hat Local Security Checks
critical
129293Photon OS 1.0: Linux PHSA-2019-1.0-0251NessusPhotonOS Local Security Checks
high
129284SUSE SLED15 / SLES15 Security Update : kernel-source-rt (SUSE-SU-2019:2430-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (SACK Panic) (SACK Slowness) (Spectre)NessusSuSE Local Security Checks
high
129261EulerOS 2.0 SP3 : kernel (EulerOS-SA-2019-2068)NessusHuawei Local Security Checks
high
128732Photon OS 3.0: Linux PHSA-2019-3.0-0026NessusPhotonOS Local Security Checks
critical
128680Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel regression (USN-4115-2)NessusUbuntu Local Security Checks
critical
128478Ubuntu 16.04 LTS / 18.04 LTS : linux-aws vulnerabilities (USN-4118-1)NessusUbuntu Local Security Checks
critical
128477Ubuntu 19.04 : linux-aws vulnerabilities (USN-4117-1)NessusUbuntu Local Security Checks
high
128476Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-4116-1)NessusUbuntu Local Security Checks
medium
128475Ubuntu 16.04 LTS / 18.04 LTS : linux, linux-azure, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, (USN-4115-1)NessusUbuntu Local Security Checks
critical
128474Ubuntu 18.04 LTS / 19.04 : linux, linux-azure, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, (USN-4114-1)NessusUbuntu Local Security Checks
medium
127921Debian DLA-1885-1 : linux-4.9 security updateNessusDebian Local Security Checks
high
127867Debian DSA-4497-1 : linux - security updateNessusDebian Local Security Checks
high
127866Debian DLA-1884-1 : linux security updateNessusDebian Local Security Checks
high
127491Debian DSA-4495-1 : linux - security updateNessusDebian Local Security Checks
high
126897openSUSE Security Update : the Linux Kernel (openSUSE-2019-1757)NessusSuSE Local Security Checks
high
126884openSUSE Security Update : the Linux Kernel (openSUSE-2019-1716)NessusSuSE Local Security Checks
high
126744SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1855-1) (SACK Slowness)NessusSuSE Local Security Checks
high
126743SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1854-1)NessusSuSE Local Security Checks
high
126742SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1852-1)NessusSuSE Local Security Checks
high
126741SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:1851-1) (SACK Slowness)NessusSuSE Local Security Checks
high
126691SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1829-1)NessusSuSE Local Security Checks
high
126688SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1823-1)NessusSuSE Local Security Checks
high