CVE-2023-52809: scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()
First published: Tue May 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() fc_lport_ptp_setup() did not check the return value of fc_rport_create() which can return NULL and would cause a NULL pointer dereference. Address this issue by checking return value of fc_rport_create() and log error message on fc_rport_create() failed.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.14.331 | 4.14.331 |
| redhat/kernel | <4.19.300 | 4.19.300 |
| redhat/kernel | <5.4.262 | 5.4.262 |
| redhat/kernel | <5.10.202 | 5.10.202 |
| redhat/kernel | <5.15.140 | 5.15.140 |
| redhat/kernel | <6.1.64 | 6.1.64 |
| redhat/kernel | <6.5.13 | 6.5.13 |
| redhat/kernel | <6.6.3 | 6.6.3 |
| redhat/kernel | <6.7 | 6.7 |
| Linux Kernel | <4.14.331 | |
| Linux Kernel | >=4.15<4.19.300 | |
| Linux Kernel | >=4.20<5.4.262 | |
| Linux Kernel | >=5.5<5.10.202 | |
| Linux Kernel | >=5.11<5.15.140 | |
| Linux Kernel | >=5.16<6.1.64 | |
| Linux Kernel | >=6.2<6.5.13 | |
| Linux Kernel | >=6.6<6.6.3 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 | |
| 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 |
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Reference Links
- https://git.kernel.org/stable/c/442fd24d7b6b29e4a9cd9225afba4142d5f522ba
- https://git.kernel.org/stable/c/4df105f0ce9f6f30cda4e99f577150d23f0c9c5f
- https://git.kernel.org/stable/c/56d78b5495ebecbb9395101f3be177cd0a52450b
- https://git.kernel.org/stable/c/6b9ecf4e1032e645873933e5b43cbb84cac19106
- https://git.kernel.org/stable/c/77072ec41d6ab3718c3fc639bc149b8037caedfa
- https://git.kernel.org/stable/c/930f0aaba4820d6362de4e6ed569eaf444f1ea4e
- https://git.kernel.org/stable/c/b549acf999824d4f751ca57965700372f2f3ad00
- https://git.kernel.org/stable/c/bb83f79f90e92f46466adcfd4fd264a7ae0f0f01
- https://git.kernel.org/stable/c/f6fe7261b92b21109678747f36df9fdab1e30c34
- https://launchpad.net/bugs/cve/CVE-2023-52809
- https://access.redhat.com/security/cve/CVE-2023-52809
- https://lore.kernel.org/linux-cve-announce/2024052102-CVE-2023-52809-f07c@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:4928
- https://access.redhat.com/errata/RHSA-2024:5067
- https://access.redhat.com/errata/RHSA-2024:5066
- https://access.redhat.com/errata/RHSA-2024:7000
- https://bugzilla.redhat.com/show_bug.cgi?id=2282669
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52809
- https://nvd.nist.gov/vuln/detail/CVE-2023-52809
- https://security-tracker.debian.org/tracker/CVE-2023-52809
- https://ubuntu.com/security/CVE-2023-52809
- https://git.kernel.org/linus/4df105f0ce9f6f30cda4e99f577150d23f0c9c5f
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-52809?
CVE-2023-52809 has a moderate severity rating due to the potential for a NULL pointer dereference leading to system instability.
How do I fix CVE-2023-52809?
To mitigate CVE-2023-52809, update the Linux kernel to versions 4.14.331, 4.19.300, 5.4.262, 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3, or later.
Which Linux kernel versions are affected by CVE-2023-52809?
CVE-2023-52809 affects multiple versions of the Linux kernel prior to 4.14.331, 4.19.300, 5.4.262, 5.10.202, 5.15.140, 6.1.64, 6.5.13, and 6.6.3.
Is there a workaround for CVE-2023-52809?
There is no known workaround for CVE-2023-52809, and the recommended solution is to apply the appropriate kernel updates.
What component of the Linux kernel is impacted by CVE-2023-52809?
CVE-2023-52809 specifically impacts the SCSI subsystem within the Linux kernel, highlighting an issue in the fc_lport_ptp_setup() function.
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