Medium severity · published Jul 20, 2021
CVE-2021-36980
Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a…
5.5
CVSS
1.2%
EPSS
No
On KEV
Description
Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openvswitch · Openvswitch
2.11.0 through 2.15.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36980
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36980
Patch
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27851
Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-2197.yaml
Patch
https://github.com/openvswitch/ovs/commit/38744b1bcb022c611712527f039722115300f58f
Patch
https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8aeb3
Patch
https://github.com/openvswitch/ovs/commit/6d67310f4d2524b466b98f05ebccc1add1e8cf35
Patch
https://github.com/openvswitch/ovs/commit/77cccc74deede443e8b9102299efc869a52b65b2
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