CVE-2022-28733
Published: 20 July 2023
Summary
CVE-2022-28733 is a high-severity Wrap or Wraparound (CWE-191) vulnerability in Gnu Grub2. Its CVSS base score is 8.1 (High).
Operationally, ranked at the 29.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-33172
Vulnerability details
Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be…
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used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.