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CVE-2019-10638

Good to know:

Date: July 5, 2019

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.

Language: C

Severity Score

6.5

Related Resources (33)

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

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

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

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

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

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

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

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

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

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

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

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

Url: https://access.redhat.com/security/cve/CVE-2019-10638

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

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

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2019-10638

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

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

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

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

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

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

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

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

Url: https://security-tracker.debian.org/tracker/CVE-2019-10638

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

Url: https://nvd.nist.gov/vuln/detail/CVE-2019-10638

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

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

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

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

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

Url: https://www.mend.io/vulnerability-database/CVE-2019-10638

Severity Score

6.5

Weakness Type (CWE)

Inadequate Encryption Strength

CWE-326

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Top Fix

Upgrade Version

Upgrade to version linux-libc-headers - 5.14;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68

Learn More

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

Mend.io Vulnerability Database

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CVE-2019-10638

Good to know:

Date: July 5, 2019

Language: C

Severity Score

Related Resources (33)

Severity Score

Weakness Type (CWE)

Top Fix

Upgrade Version

CVSS v3.1

CVSS v2

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