CVE-2023-39197: Linux Kernel Netfilter Conntrack Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Wed Jun 28 2023(Updated: )
An out-of-bounds read vulnerability was found in Netfilter Connection Tracking (conntrack) in the Linux kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Kernel-devel | ||
| Linux Kernel | >=2.6.26<5.4.251 | |
| Linux Kernel | >=5.5<5.10.188 | |
| Linux Kernel | >=5.11<5.15.121 | |
| Linux Kernel | >=5.16<6.1.39 | |
| Linux Kernel | >=6.2<6.3.13 | |
| Linux Kernel | >=6.4<6.4.4 | |
| Red Hat Fedora | =38 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.19-1 6.12.20-1 |
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Reference Links
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-21202
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2248722
- https://bugzilla.redhat.com/show_bug.cgi?id=2218342
- https://access.redhat.com/security/cve/CVE-2023-39197
- https://launchpad.net/bugs/cve/CVE-2023-39197
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-21202/
- https://git.kernel.org/linus/ff0a3a7d52ff7282dbd183e7fc29a1fe386b0c30
- https://security-tracker.debian.org/tracker/CVE-2023-39197
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39197
- https://nvd.nist.gov/vuln/detail/CVE-2023-39197
- https://ubuntu.com/security/CVE-2023-39197
Frequently Asked Questions
What is the severity of CVE-2023-39197?
CVE-2023-39197 has been classified as a moderate severity vulnerability due to its potential for information disclosure.
How do I fix CVE-2023-39197?
To mitigate CVE-2023-39197, update your Linux kernel to a version that includes the patch addressing this vulnerability.
Which Linux kernel versions are affected by CVE-2023-39197?
CVE-2023-39197 affects various versions of the Linux kernel, including those between 2.6.26 and 6.4.
What type of attack can exploit CVE-2023-39197?
CVE-2023-39197 can be exploited by a remote user to perform an out-of-bounds read that may expose sensitive information.
Is CVE-2023-39197 specific to any distribution?
CVE-2023-39197 impacts multiple Linux distributions, including Debian and Fedora, due to the shared vulnerability in the kernel.
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