iproute: use-after-free in get_netnsid_from_name in ip/ipnetns.c
Published May 9, 2020
4.4
MEDIUMCVSS 3.1
EPSS 0.40%
Description
iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.
Affected products
No data.
Configuration 1
- < 5.1.0
Configuration 2
- 18.04
No data.
Red Hat Enterprise Linux 5
iproute
Out of support scope
Red Hat Enterprise Linux 6
iproute
Out of support scope
Red Hat Enterprise Linux 7
iproute
Fix deferred
Red Hat Enterprise Linux 8
iproute
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | iproute | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | iproute | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | iproute | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | iproute | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of `iproute` as shipped with Red Hat Enterprise Linux 7. Red Hat Enterprise Linux 8 is not affected by this flaw. This flaw has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6. Red Hat Enterprise Linux 5 is now in the Extended Life Phase of the support and maintenance life cycle. Red Hat Enterprise Linux 6 is now in the Maintenance Support 2 Phase of the support and maintenance life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
References (8)
- https://access.redhat.com/security/cve/CVE-2019-20795 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1868211 Issue Tracking
- https://bugzilla.suse.com/show_bug.cgi?id=1171452 x_refsource_MISCIssue TrackingThird Party Advisory
- https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-20795
- https://security.gentoo.org/glsa/202008-06 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/4357-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-20795
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-20795 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1868211 | Issue Tracking | |
| https://bugzilla.suse.com/show_bug.cgi?id=1171452 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-20795 | ||
| https://security.gentoo.org/glsa/202008-06 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://usn.ubuntu.com/4357-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-20795 |
Change history (0)
No recorded changes yet.