CVE-2022-33743
HIGH
7.8
CVSS Score
Published: July 5, 2022 at 12:50 PM UTC
Updated: June 17, 2026 at 04:49 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxXen
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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
Description
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%5.9 ≤ v ≤ 5.18
Vendor states this is fixed in consult Xen advisory XSA-405 (unknown)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2022/07/05/5x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
http://xenbits.xen.org/xsa/advisory-405.htmlVendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2022/dsa-5191x_refsource_MISCVendor Advisory
Source: [email protected]
https://xenbits.xenproject.org/xsa/advisory-405.txtCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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