Vulnerability Name:

CVE-2022-32296 (CCN-228178)

Assigned:2022-05-04
Published:2022-05-04
Updated:2022-09-28
Summary:The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
CVSS v3 Severity:3.3 Low (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
2.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-203
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2022-32296

Source: MISC
Type: UNKNOWN
https://arxiv.org/abs/2209.12993

Source: MISC
Type: Release Notes, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9

Source: XF
Type: UNKNOWN
linux-kernel-cve202232296-info-disc(228178)

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5

Source: CCN
Type: Linux Kernel GIT Repository
tcp: increase source port perturb table to 2 16

Source: MISC
Type: UNKNOWN
https://github.com/0xkol/rfc6056-device-tracker

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update

Source: DEBIAN
Type: UNKNOWN
DSA-5173

Source: CCN
Type: IBM Security Bulletin 6847563 (Elastic Storage System)
Multiple Linux Kernel vulnerabilities may affect IBM Elastic Storage System

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.17.9)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.17.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:8029
    P
    		kernel-docs-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-20
    oval:org.opensuse.security:def:8090
    P
    		reiserfs-kmp-default-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:7539
    P
    		kernel-64kb-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:51945
    P
    		Security update for the Linux Kernel (Important)
    2022-11-01
    oval:org.opensuse.security:def:653
    P
    		Security update for the Linux Kernel (Important) (in QA)
    2022-10-05
    BACK
    linux linux kernel *
    linux linux kernel 5.17.8