VulnerabilityModified
CVE-2020-36385
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
HIGH 7.8EPSS 1.48%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.48% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h300e firmware · netapp/h500e firmware · netapp/h700e firmware · netapp/h410s firmware · netapp/h410c firmware · starwindsoftware/starwind san \& nas · starwindsoftware/starwind virtual san
- Source
- cve@mitre.org
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210720-0004/Third Party Advisory
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2Patch, Third Party Advisory
- https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6Patch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20220802-0002/Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210720-0004/Third Party Advisory
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2Patch, Third Party Advisory
- https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6Patch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20220802-0002/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.