Vulnerability Details : CVE-2023-42752
An integer overflow flaw was found in the Linux kernel. This issue leads to the kernel allocating `skb_shared_info` in the userspace, which is exploitable in systems without SMAP protection since `skb_shared_info` contains references to function pointers.
Vulnerability category: Overflow
Products affected by CVE-2023-42752
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-42752
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 16 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-42752
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2023-42752
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-42752
-
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
Kernel Live Patch Security Notice LSN-0099-1 ≈ Packet Storm
-
https://bugzilla.redhat.com/show_bug.cgi?id=2239828
2239828 – (CVE-2023-42752) CVE-2023-42752 kernel: integer overflow in igmpv3_newpack leading to exploitable memory accessIssue Tracking;Third Party Advisory
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https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c3b704d4a4a2
kernel/git/netdev/net.git - Netdev Group's networking treeMailing List;Patch
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https://access.redhat.com/security/cve/CVE-2023-42752
CVE-2023-42752- Red Hat Customer PortalThird Party Advisory
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https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=915d975b2ffa
kernel/git/netdev/net.git - Netdev Group's networking treeMailing List;Patch
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