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CVE-2018-13095

Good to know:

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Date: July 3, 2018

An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3. A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork.

Language: C

Severity Score

Related Resources (11)

https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=23fcb3340d033d9f081e21e6c12c2db7eaa541d3
https://github.com/torvalds/linux/commit/23fcb3340d033d9f081e21e6c12c2db7eaa541d3
https://access.redhat.com/errata/RHSA-2019:2029
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-13095
https://access.redhat.com/security/cve/CVE-2018-13095
https://bugzilla.kernel.org/show_bug.cgi?id=199915
https://nvd.nist.gov/vuln/detail/CVE-2018-13095
https://security-tracker.debian.org/tracker/CVE-2018-13095
https://access.redhat.com/errata/RHSA-2019:1350
https://access.redhat.com/errata/RHSA-2019:2043
https://www.mend.io/vulnerability-database/CVE-2018-13095

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Out-of-bounds Write

CWE-787

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.24+gitAUTOINC+c84532b647_f6329fd287;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744

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CVSS v3.1

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

CVSS v2

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

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