CVE-2024-27399: Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout
First published: Mon May 13 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout The Linux kernel CVE team has assigned <a href="https://access.redhat.com/security/cve/CVE-2024-27399">CVE-2024-27399</a> to this issue. Upstream advisory: <a href="https://lore.kernel.org/linux-cve-announce/2024051300-CVE-2024-27399-afa8@gregkh/T">https://lore.kernel.org/linux-cve-announce/2024051300-CVE-2024-27399-afa8@gregkh/T</a>
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.9 | 6.9 |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.16-1 |
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Reference Links
- https://git.kernel.org/stable/c/06acb75e7ed600d0bbf7bff5628aa8f24a97978c
- https://git.kernel.org/stable/c/6466ee65e5b27161c846c73ef407f49dfa1bd1d9
- https://git.kernel.org/stable/c/8960ff650aec70485b40771cd8e6e8c4cb467d33
- https://git.kernel.org/stable/c/955b5b6c54d95b5e7444dfc81c95c8e013f27ac0
- https://git.kernel.org/stable/c/adf0398cee86643b8eacde95f17d073d022f782c
- https://git.kernel.org/stable/c/e137e2ba96e51902dc2878131823a96bf8e638ae
- https://git.kernel.org/stable/c/e97e16433eb4533083b096a3824b93a5ca3aee79
- https://git.kernel.org/stable/c/eb86f955488c39526534211f2610e48a5cf8ead4
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DW2MIOIMOFUSNLHLRYX23AFR36BMKD65/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OTB4HWU2PTVW5NEYHHLOCXDKG3PYA534/
- https://launchpad.net/bugs/cve/CVE-2024-27399
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://security.netapp.com/advisory/ntap-20240926-0001/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27399
- https://nvd.nist.gov/vuln/detail/CVE-2024-27399
- https://security-tracker.debian.org/tracker/CVE-2024-27399
- https://ubuntu.com/security/CVE-2024-27399
- https://git.kernel.org/linus/adf0398cee86643b8eacde95f17d073d022f782c
- https://access.redhat.com/security/cve/CVE-2024-27399
- https://lore.kernel.org/linux-cve-announce/2024051300-CVE-2024-27399-afa8@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2280463
- https://access.redhat.com/errata/RHSA-2024:6993
- https://access.redhat.com/errata/RHSA-2024:10281
- https://access.redhat.com/errata/RHSA-2024:10773
- https://access.redhat.com/errata/RHSA-2024:10772
- https://access.redhat.com/errata/RHSA-2024:10771
- https://access.redhat.com/errata/RHSA-2024:11486
- https://bugzilla.redhat.com/show_bug.cgi?id=2280462
Frequently Asked Questions
What is the severity of CVE-2024-27399?
CVE-2024-27399 has been classified with a medium to high severity due to its potential to cause null pointer dereference in the Linux kernel Bluetooth stack.
How do I fix CVE-2024-27399?
To resolve CVE-2024-27399, users should update to the recommended kernel versions specified by their Linux distribution, such as Red Hat or Debian.
Which versions of the Linux kernel are affected by CVE-2024-27399?
CVE-2024-27399 affects specific versions of the Linux kernel, including versions up to 6.9 in Red Hat and several versions in the Debian package management.
Is there a workaround for CVE-2024-27399?
Currently, there is no widely recommended workaround for CVE-2024-27399; updating to the patched kernel versions is the best course of action.
What components are impacted by CVE-2024-27399?
CVE-2024-27399 specifically impacts the Bluetooth functionality within the Linux kernel, particularly related to L2CAP channel timeouts.
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