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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Red Hat Inc.
commercial·USaka red hat
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
ООО «Ред Софт»
commercial·RUaka red soft
АО «НППКТ»
commercial·RU
АО «НТЦ ИТ РОСА»
commercial·RU
Erich Boleyn
individual-devaka grub
Grub2On-prem
Operating Systems and 3 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://git.savannah.gnu.org/gitweb/?p=grub.git
git.savannah.gnu.org
http://repo.red-soft.ru/redos/7.3c/x86_64/updates/
repo.red-soft.ru
https://access.redhat.com/security/cve/CVE-2022-28734
access.redhat.com
and 6 more references View all →
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