Critical severity · published Sep 9, 2022
CVE-2022-2526
A use-after-free vulnerability was found in systemd
9.8
CVSS
1.3%
EPSS
No
On KEV
Description
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Active IQ Unified Manager · Netapp
All versions, or not specified · source: NVD
HF
H300s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700s Firmware · Netapp
All versions, or not specified · source: NVD
SY
Systemd · Systemd Project
240 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-2526
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-2526
Patch
https://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27c
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221111-0005/
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