Integer overflow in igmpv3_newpack leading to exploitable memory access
CVE-2023-42752

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Kernel
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
13 October 2023
đź”” Create Red Hat Vulnerability Alert

What is 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.

Affected Version(s)

Kernel 6.6-rc1

References

https://access.redhat.com/security/cve/CVE-2023-42752
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2239828
issue-trackingx_refsource_REDHAT
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/ne...

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2023-42752 : Integer overflow in igmpv3_newpack leading to exploitable memory access