Home/CVE/An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the
CVE

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

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 · CVSS 7.8 EPSS 0.00055
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

11
linux kernel< 5.10
netapp h300s firmwareall versions
netapp h500s firmwareall versions
netapp h700s firmwareall versions
netapp h300e firmwareall versions
netapp h500e firmwareall versions
netapp h700e firmwareall versions
netapp h410s firmwareall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Jun 2021 · 12:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

30
usnUSN-5343-1
rhsaRHSA-2021:5035Critical
suse-csafSUSE-SU-2021:14849-1
usnUSN-5137-2
usnUSN-5137-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10Release NotesVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1PatchVendor 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-2PatchThird Party Advisory
https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6PatchThird Party Advisory
https://www.starwindsoftware.com/security/sw-20220802-0002/Third Party Advisory
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