Out-of-bounds Write Affecting grub2-snapper-plugin package, versions <2.04-150300.22.20.2


medium

Snyk CVSS

    Attack Complexity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (15th percentile)
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NVD
7 high
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SUSE
7 high
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Red Hat
7 high

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  • Snyk ID SNYK-SLES153-GRUB2SNAPPERPLUGIN-2869542
  • published 14 Jun 2022
  • disclosed 13 Jun 2022

How to fix?

Upgrade SLES:15.3 grub2-snapper-plugin to version 2.04-150300.22.20.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-snapper-plugin package and not the grub2-snapper-plugin package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata.