kernel: null pointer dereference in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c causing denial of service
Published May 30, 2019
4.1
MEDIUMCVSS 3.1
EPSS 0.44%
Description
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
Affected products
No data.
- ≤ 5.1.5
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
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 MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| 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-alt | 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 MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (9)
- https://access.redhat.com/security/cve/CVE-2019-12455 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1716990 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-4063 Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git/commit/?h=sunxi/clk-for-5.3&id=fcdf445ff42f036d22178b49cf64e92d527c1330 x_refsource_MISCMailing ListPatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2019-12455
- https://security.netapp.com/advisory/ntap-20190710-0002/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2019-12455
- https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg2010240.html x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-12455 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1716990 | Issue Tracking | |
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-4063 | Advisory | |
| https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git/commit/?h=sunxi/clk-for-5.3&id=fcdf445ff42f036d22178b49cf64e92d527c1330 | x_refsource_MISCMailing ListPatchVendor Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/ | vendor-advisoryx_refsource_FEDORA | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-12455 | ||
| https://security.netapp.com/advisory/ntap-20190710-0002/ | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2019-12455 | ||
| https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg2010240.html | x_refsource_MISC |
Change history (0)
No recorded changes yet.