Alpaquita Linux
Security Advisory

CVE-2022-28734

Published: August 31, 2023Last modified: August 31, 2023

Description

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.

Severity score breakdown

ParameterValue
Base score7
Attack VectorNETWORK
Attack complexityHIGH
Privileges requiredNONE
User interactionNONE
ScopeUNCHANGED
ConfidentialityLOW
Integrity impactLOW
Availability impactHIGH
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

Status

ProductReleasePackageStatus
Alpaquita Linux23 LTSgrubNot affected (2.06-r15)
StreamgrubNot affected (2.06-r17)

References

ON THIS PAGE