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Directory Traversal Affecting kernel-debuginfo package, versions <0:4.14.219-161.340.amzn2

Severity

 Recommended
0.0
high
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.38% (74th percentile)

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  • Snyk ID SNYK-AMZN2-KERNELDEBUGINFO-1694293
  • published 27 Sep 2021
  • disclosed 13 Jan 2021
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Introduced: 13 Jan 2021

CVE-2020-28374 Open this link in a new tab
CWE-22 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 kernel-debuginfo to version 0:4.14.219-161.340.amzn2 or higher.
This issue was patched in ALAS2-2021-1600.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debuginfo package and not the kernel-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.

References

CVSS Scores

version 3.1
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NVD

8.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
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Red Hat

8.1 high
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SUSE

8.1 high