CVE-2023-51779: Use After Free
First published: Mon Dec 25 2023(Updated: )
A flaw was found in the Bluetooth subsystem of the Linux kernel. A race condition between the bt_sock_recvmsg() and bt_sock_ioctl() functions could lead to a use-after-free on a socket buffer ("skb"). A local user could exploit this vulnerability to cause a denial of service condition or potential code execution. Upstream fix: <a href="https://github.com/torvalds/linux/commit/2e07e8348ea454615e268222ae3fc240421be768">https://github.com/torvalds/linux/commit/2e07e8348ea454615e268222ae3fc240421be768</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.7 | 6.7 |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 6.12.22-1 |
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Reference Links
- https://github.com/torvalds/linux/commit/2e07e8348ea454615e268222ae3fc240421be768
- https://launchpad.net/bugs/cve/CVE-2023-51779
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2256823
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2261903
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://access.redhat.com/errata/RHSA-2024:3854
- https://access.redhat.com/errata/RHSA-2024:3855
- https://access.redhat.com/errata/RHSA-2024:3859
- https://access.redhat.com/errata/RHSA-2024:10941
- https://bugzilla.redhat.com/show_bug.cgi?id=2256822
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-51779
- https://nvd.nist.gov/vuln/detail/CVE-2023-51779
- https://security-tracker.debian.org/tracker/CVE-2023-51779
- https://ubuntu.com/security/CVE-2023-51779
- https://git.kernel.org/linus/2e07e8348ea454615e268222ae3fc240421be768
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-51779?
CVE-2023-51779 has a severity level that can lead to denial of service conditions.
How do I fix CVE-2023-51779?
To resolve CVE-2023-51779, update the Linux kernel to the fixed version provided by your distribution, such as kernel 6.7 for Red Hat or specified versions for Debian.
Which software is affected by CVE-2023-51779?
CVE-2023-51779 affects the Bluetooth subsystem of the Linux kernel in specific versions of both Red Hat and Debian.
What type of vulnerability is CVE-2023-51779?
CVE-2023-51779 is a use-after-free vulnerability caused by a race condition in the Linux kernel's Bluetooth subsystem.
Can CVE-2023-51779 be exploited by local users?
Yes, a local user could exploit CVE-2023-51779 to cause denial of service or potentially gain further access.
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