kernel: out-of-bounds array access in __xfrm_policy_unlink
Published Aug 27, 2019
6.7
MEDIUMCVSS 3.1
EPSS 1.73%
Description
An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.
Affected products
No data.
Configuration 1
- < 5.0.19
No data.
Red Hat Enterprise Linux 7
kernel-alt-0:4.14.0-115.19.1.el7a
Fixed · RHSA-2020:1493
Red Hat Enterprise Linux 8
kernel-0:4.18.0-147.el8
Fixed · RHSA-2019:3517
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-147.rt24.93.el8
Fixed · RHSA-2019:3309
Red Hat Enterprise Linux 5
kernel
Out of support scope
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 MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-alt-0:4.14.0-115.19.1.el7a | Fixed | RHSA-2020:1493 |
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-147.el8 | Fixed | RHSA-2019:3517 |
| Red Hat Enterprise Linux 8 | kernel-rt-0:4.18.0-147.rt24.93.el8 | Fixed | RHSA-2019:3309 |
| Red Hat Enterprise Linux 5 | kernel | Out of support scope | 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-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
A local privileged user (with CAP_NET_ADMIN or root) is required to exploit this condition. With this limitation, this issue is rated as Moderate.
References (12)
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-15666 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1747334 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.19 x_refsource_MISCRelease Notes
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b805d78d300bcf2c83d6df7da0c818b0fee41427 x_refsource_MISCPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html mailing-listx_refsource_MLISTThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-15666
- https://security.netapp.com/advisory/ntap-20191004-0001/ x_refsource_CONFIRMThird Party Advisory
- https://support.f5.com/csp/article/K53420251?utm_source=f5support&%3Butm_medium=RSS x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2019-15666
Change history (0)
No recorded changes yet.