7.8

CVE-2022-2586

Warnung
Exploit
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.16 < 4.14.316
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.256
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.211
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.137
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.61
Linux ≫ Linux Kernel Version >= 5.16 < 5.18.18
Linux ≫ Linux Kernel Version >= 5.19 < 5.19.2
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 22.04 SwEdition lts
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login

26.06.2024: CISA Known Exploited Vulnerabilities (KEV) Catalog

Linux Kernel Use-After-Free Vulnerability

Schwachstelle

Linux Kernel contains a use-after-free vulnerability in the nft_object, allowing local attackers to escalate privileges.

Beschreibung

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 10.46% 0.952
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Canonical 5.3 1 4.2
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://www.openwall.com/lists/oss-security/2022/08/09/5
Mailing List
https://www.vicarius.io/vsociety/posts/use-after-free-vulnerability-linked-chain-between-nft-tables-cve-2022-2586
Third Party Advisory
Exploit
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586
Third Party Advisory
https://lore.kernel.org/netfilter-devel/20220809170148.164591-1-cascardo@canonical.com/T/#t
Patch
Mailing List
https://ubuntu.com/security/notices/USN-5557-1
Third Party Advisory
https://ubuntu.com/security/notices/USN-5560-1
Third Party Advisory
https://ubuntu.com/security/notices/USN-5560-2
Third Party Advisory
https://ubuntu.com/security/notices/USN-5562-1
Third Party Advisory
https://ubuntu.com/security/notices/USN-5564-1
Third Party Advisory
https://ubuntu.com/security/notices/USN-5565-1
Third Party Advisory
https://ubuntu.com/security/notices/USN-5566-1
Third Party Advisory
https://ubuntu.com/security/notices/USN-5567-1
Third Party Advisory
https://ubuntu.com/security/notices/USN-5582-1
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-1118/
Third Party Advisory
VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-2586
US Government Resource