High severity · published May 17, 2022
CVE-2022-29581
Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root
7.8
CVSS
0.9%
EPSS
No
On KEV
Description
Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.14 before 4.14.278; 4.15 before 4.19.241; 4.20 before 5.4.191; 5.5 before 5.10.113; 5.11 before 5.15.36; 5.16 before 5.17.5 · source: NVD
DL
Debian Linux · Debian
10.0 · source: NVD
HF
H300e Firmware · Netapp
All versions, or not specified · source: NVD
HF
H300s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410c Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500e Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700e Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700s Firmware · Netapp
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 20.04; 22.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-29581
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-29581
Third Party Advisory
http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
Exploit
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html
Mailing List
http://www.openwall.com/lists/oss-security/2022/05/18/2
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3db09e762dc79584a69c10d74a6b98f89a9979f8
Patch
https://kernel.dance/#3db09e762dc79584a69c10d74a6b98f89a9979f8
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220629-0005/
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