kernel: netdevsim: fib: reference count leak on route deletion failure
Published Apr 24, 2023
5.3
MEDIUMCVSS 3.1
EPSS 0.34%
Description
A flaw was found in the Linux kernel's netdevsim device driver, within the scheduling of events. This issue results from the improper management of a reference count. This may allow an attacker to create a denial of service condition on the system.
Affected products
- Vendor n/a Product Linux kernel's netdevsim device driver Defaultn/a
- Version Fixed in kernel v6.0-rc1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Linux kernel's netdevsim device driver | n/a |
|
Configuration 1
- < 6.0
Configuration 2
- 9.0
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Will not fix
Red Hat Enterprise Linux 9
kernel-rt
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 6 and 7 are not affected by this flaw as they did not ship the `netdevsim` device driver. Red Hat Enterprise Linux 8 is not affected as it did not include the upstream commit that introduced this flaw (0ae3eb7 "netdevsim: fib: Perform the route programming in a non-atomic context").
References (7)
- https://access.redhat.com/security/cve/CVE-2023-2019 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2189137 Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/180a6a3ee60a Patch
- https://nvd.nist.gov/vuln/detail/CVE-2023-2019
- https://www.cve.org/CVERecord?id=CVE-2023-2019
- https://www.zerodayinitiative.com/advisories/ZDI-23-442/
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-17811/ Third Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-2019 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2189137 | Issue TrackingPatchThird Party Advisory | |
| https://github.com/torvalds/linux/commit/180a6a3ee60a | Patch | |
| https://nvd.nist.gov/vuln/detail/CVE-2023-2019 | ||
| https://www.cve.org/CVERecord?id=CVE-2023-2019 | ||
| https://www.zerodayinitiative.com/advisories/ZDI-23-442/ | ||
| https://www.zerodayinitiative.com/advisories/ZDI-CAN-17811/ | Third Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.