CVE-2022-28733
Integer underflow in grub_net_recv_ip4_packets
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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 used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.
A flaw was found in grub2 when handling IPv4 packets. This flaw allows an attacker to craft a malicious packet, triggering an integer underflow in grub code. Consequently, the memory allocation for handling the packet data may be smaller than the size needed. This issue causes an out-of-bands write during packet handling, compromising data integrity, confidentiality issues, a denial of service, and remote code execution.
CVSS Scores
SSVC
- Decision:Track*
Timeline
- 2022-04-05 CVE Reserved
- 2022-06-20 CVE Published
- 2024-08-21 EPSS Updated
- 2024-10-24 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-191: Integer Underflow (Wrap or Wraparound)
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28733 | Issue Tracking | |
| https://security.netapp.com/advisory/ntap-20230825-0002 |
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| https://www.openwall.com/lists/oss-security/2022/06/07/5 | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2022-28733 | 2022-12-08 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2083339 | 2022-12-08 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gnu Search vendor "Gnu" | Grub2 Search vendor "Gnu" for product "Grub2" | >= 2.00 < 2.06-3 Search vendor "Gnu" for product "Grub2" and version " >= 2.00 < 2.06-3" | - |
Affected
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