CVE-2021-45485
In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.58% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-327
- Affected
- linux/linux kernel · netapp/e-series santricity os controller · netapp/solidfire\, enterprise sds \& hci storage node · netapp/solidfire \& hci management node · netapp/brocade fabric operating system firmware · oracle/communications cloud native core binding support function · oracle/communications cloud native core network exposure function · oracle/communications cloud native core policy · netapp/all flash fabric-attached storage 8300 firmware · netapp/fabric-attached storage 8300 firmware · netapp/all flash fabric-attached storage 8700 firmware · netapp/fabric-attached storage 8700 firmware · netapp/aff a400 firmware · netapp/fabric-attached storage a400 firmware · netapp/hci compute node firmware · netapp/h300e firmware · netapp/h300s firmware · netapp/h410c firmware · netapp/h410s firmware · netapp/h500e firmware · +6 more
- Source
- cve@mitre.org
References
- https://arxiv.org/pdf/2112.09604.pdfTechnical Description, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220121-0001/Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
- https://arxiv.org/pdf/2112.09604.pdfTechnical Description, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220121-0001/Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.