CVE-2022-2327 json
Use-after-free in io_uring ad work_flags in Linux Kernel
published 2022-07-22 4 y ago modified 2026-10-14 25 d ago also EUVD-2022-34596
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859
Patch / fix
- Linux Kernel Linux Kernel df3f3bb5059d20ef094d6b2f0256c4bf4127a859
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
- linux Debian 14, Debian 13, Debian 12 5.14.6-1
debian advisories DEBIAN-CVE-2022-2327
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-23-166-11 updated cvss 7.8
Siemens SIMATIC S7-1500 TM MFP Linux Kernel
-
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem <V1.1affected: fixed in V1.1, workaround support.industry.siemens.com
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 18 mo ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Linux Kernel Linux Kernel
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classification
- Weakness
- Technology feeds
References
-
git.kernel.org
/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=df3f3bb5059d20ef094d6b2f0256c4bf4127a859
mailing-list, patch, vendor-advisory
-
kernel.dance
/#df3f3bb5059d20ef094d6b2f0256c4bf4127a859
patch, third-party-advisory
-
security.netapp.com
/advisory/ntap-20230203-0009/
third-party-advisory
- cert-portal.siemens.com /productcert/html/ssa-794697.html
Sources
- CVE List CVE-2022-2327
- NVD CVE-2022-2327
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.