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CVE-2019-8956

Good to know:

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Date: April 1, 2019

In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.

Language: C

Severity Score

Related Resources (11)

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0
https://nvd.nist.gov/vuln/detail/CVE-2019-8956
https://security-tracker.debian.org/tracker/CVE-2019-8956
https://usn.ubuntu.com/3930-1/
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
https://usn.ubuntu.com/3930-2/
https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
https://support.f5.com/csp/article/K12671141
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-8956
https://www.mend.io/vulnerability-database/CVE-2019-8956

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-yocto - 4.8.12+gitAUTOINC+926c93ae07_021b4aef55

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CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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