Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2022-22173

Missing Release of Memory after Effective Lifetime

Published: Jan 19, 2022 | Modified: Feb 01, 2022
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-22173
CWEhttps://cwe.mitre.org/data/definitions/401.html

A Missing Release of Memory after Effective Lifetime vulnerability in the Public Key Infrastructure daemon (pkid) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause Denial of Service (DoS). In a scenario where Public Key Infrastructure (PKI) is used in combination with Certificate Revocation List (CRL), if the CRL fails to download the memory allocated to store the CRL is not released. Repeated occurrences will eventually consume all available memory and lead to an inoperable state of the affected system causing a DoS. This issue affects Juniper Networks Junos OS: All versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R2-S9, 18.4R3-S10; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R2-S5, 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2, 21.1R3; 21.2 versions prior to 21.2R1-S1, 21.2R2. This issue can be observed by monitoring the memory utilization of the pkid process via: root@jtac-srx1500-r2003> show system processes extensive | match pki 20931 root 20 0 733M 14352K select 0:00 0.00% pkid which increases over time: root@jtac-srx1500-r2003> show system processes extensive | match pki 22587 root 20 0 901M 181M select 0:03 0.00% pkid

Weakness

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Affected Software

Name Vendor Start Version End Version
Junos Juniper * 18.3 (excluding)
Junos Juniper 18.3 (including) 18.3 (including)
Junos Juniper 18.3-r (including) 18.3-r (including)
Junos Juniper 18.3-r1 (including) 18.3-r1 (including)
Junos Juniper 18.3-r1-s1 (including) 18.3-r1-s1 (including)
Junos Juniper 18.3-r1-s2 (including) 18.3-r1-s2 (including)
Junos Juniper 18.3-r1-s3 (including) 18.3-r1-s3 (including)
Junos Juniper 18.3-r1-s4 (including) 18.3-r1-s4 (including)
Junos Juniper 18.3-r1-s5 (including) 18.3-r1-s5 (including)
Junos Juniper 18.3-r1-s6 (including) 18.3-r1-s6 (including)
Junos Juniper 18.3-r2 (including) 18.3-r2 (including)
Junos Juniper 18.3-r2-s1 (including) 18.3-r2-s1 (including)
Junos Juniper 18.3-r2-s2 (including) 18.3-r2-s2 (including)
Junos Juniper 18.3-r2-s3 (including) 18.3-r2-s3 (including)
Junos Juniper 18.3-r2-s4 (including) 18.3-r2-s4 (including)
Junos Juniper 18.3-r3 (including) 18.3-r3 (including)
Junos Juniper 18.3-r3-s1 (including) 18.3-r3-s1 (including)
Junos Juniper 18.3-r3-s2 (including) 18.3-r3-s2 (including)
Junos Juniper 18.3-r3-s3 (including) 18.3-r3-s3 (including)
Junos Juniper 18.3-r3-s4 (including) 18.3-r3-s4 (including)
Junos Juniper 18.3-r3-s5 (including) 18.3-r3-s5 (including)
Junos Juniper 18.4 (including) 18.4 (including)
Junos Juniper 18.4-r1 (including) 18.4-r1 (including)
Junos Juniper 18.4-r1-s1 (including) 18.4-r1-s1 (including)
Junos Juniper 18.4-r1-s2 (including) 18.4-r1-s2 (including)
Junos Juniper 18.4-r1-s3 (including) 18.4-r1-s3 (including)
Junos Juniper 18.4-r1-s4 (including) 18.4-r1-s4 (including)
Junos Juniper 18.4-r1-s5 (including) 18.4-r1-s5 (including)
Junos Juniper 18.4-r1-s6 (including) 18.4-r1-s6 (including)
Junos Juniper 18.4-r1-s7 (including) 18.4-r1-s7 (including)
Junos Juniper 18.4-r2 (including) 18.4-r2 (including)
Junos Juniper 18.4-r2-s1 (including) 18.4-r2-s1 (including)
Junos Juniper 18.4-r2-s2 (including) 18.4-r2-s2 (including)
Junos Juniper 18.4-r2-s3 (including) 18.4-r2-s3 (including)
Junos Juniper 18.4-r2-s4 (including) 18.4-r2-s4 (including)
Junos Juniper 18.4-r2-s5 (including) 18.4-r2-s5 (including)
Junos Juniper 18.4-r2-s6 (including) 18.4-r2-s6 (including)
Junos Juniper 18.4-r2-s7 (including) 18.4-r2-s7 (including)
Junos Juniper 18.4-r2-s8 (including) 18.4-r2-s8 (including)
Junos Juniper 18.4-r3 (including) 18.4-r3 (including)
Junos Juniper 18.4-r3-s1 (including) 18.4-r3-s1 (including)
Junos Juniper 18.4-r3-s2 (including) 18.4-r3-s2 (including)
Junos Juniper 18.4-r3-s3 (including) 18.4-r3-s3 (including)
Junos Juniper 18.4-r3-s4 (including) 18.4-r3-s4 (including)
Junos Juniper 18.4-r3-s5 (including) 18.4-r3-s5 (including)
Junos Juniper 18.4-r3-s6 (including) 18.4-r3-s6 (including)
Junos Juniper 18.4-r3-s7 (including) 18.4-r3-s7 (including)
Junos Juniper 18.4-r3-s8 (including) 18.4-r3-s8 (including)
Junos Juniper 18.4-r3-s9 (including) 18.4-r3-s9 (including)
Junos Juniper 19.1 (including) 19.1 (including)
Junos Juniper 19.1-r1 (including) 19.1-r1 (including)
Junos Juniper 19.1-r1-s1 (including) 19.1-r1-s1 (including)
Junos Juniper 19.1-r1-s2 (including) 19.1-r1-s2 (including)
Junos Juniper 19.1-r1-s3 (including) 19.1-r1-s3 (including)
Junos Juniper 19.1-r1-s4 (including) 19.1-r1-s4 (including)
Junos Juniper 19.1-r1-s5 (including) 19.1-r1-s5 (including)
Junos Juniper 19.1-r1-s6 (including) 19.1-r1-s6 (including)
Junos Juniper 19.1-r2 (including) 19.1-r2 (including)
Junos Juniper 19.1-r2-s1 (including) 19.1-r2-s1 (including)
Junos Juniper 19.1-r2-s2 (including) 19.1-r2-s2 (including)
Junos Juniper 19.1-r3 (including) 19.1-r3 (including)
Junos Juniper 19.1-r3-s1 (including) 19.1-r3-s1 (including)
Junos Juniper 19.1-r3-s2 (including) 19.1-r3-s2 (including)
Junos Juniper 19.1-r3-s3 (including) 19.1-r3-s3 (including)
Junos Juniper 19.1-r3-s4 (including) 19.1-r3-s4 (including)
Junos Juniper 19.1-r3-s5 (including) 19.1-r3-s5 (including)
Junos Juniper 19.1-r3-s6 (including) 19.1-r3-s6 (including)
Junos Juniper 19.2 (including) 19.2 (including)
Junos Juniper 19.2-r1 (including) 19.2-r1 (including)
Junos Juniper 19.2-r1-s1 (including) 19.2-r1-s1 (including)
Junos Juniper 19.2-r1-s2 (including) 19.2-r1-s2 (including)
Junos Juniper 19.2-r1-s3 (including) 19.2-r1-s3 (including)
Junos Juniper 19.2-r1-s4 (including) 19.2-r1-s4 (including)
Junos Juniper 19.2-r1-s5 (including) 19.2-r1-s5 (including)
Junos Juniper 19.2-r1-s6 (including) 19.2-r1-s6 (including)
Junos Juniper 19.2-r1-s7 (including) 19.2-r1-s7 (including)
Junos Juniper 19.2-r3 (including) 19.2-r3 (including)
Junos Juniper 19.2-r3-s1 (including) 19.2-r3-s1 (including)
Junos Juniper 19.2-r3-s2 (including) 19.2-r3-s2 (including)
Junos Juniper 19.2-r3-s3 (including) 19.2-r3-s3 (including)
Junos Juniper 19.3 (including) 19.3 (including)
Junos Juniper 19.3-r1 (including) 19.3-r1 (including)
Junos Juniper 19.3-r1-s1 (including) 19.3-r1-s1 (including)
Junos Juniper 19.3-r2 (including) 19.3-r2 (including)
Junos Juniper 19.3-r2-s1 (including) 19.3-r2-s1 (including)
Junos Juniper 19.3-r2-s2 (including) 19.3-r2-s2 (including)
Junos Juniper 19.3-r2-s3 (including) 19.3-r2-s3 (including)
Junos Juniper 19.3-r2-s4 (including) 19.3-r2-s4 (including)
Junos Juniper 19.3-r2-s5 (including) 19.3-r2-s5 (including)
Junos Juniper 19.3-r2-s6 (including) 19.3-r2-s6 (including)
Junos Juniper 19.3-r3-s4 (including) 19.3-r3-s4 (including)
Junos Juniper 19.4 (including) 19.4 (including)
Junos Juniper 19.4-r1 (including) 19.4-r1 (including)
Junos Juniper 19.4-r1-s1 (including) 19.4-r1-s1 (including)
Junos Juniper 19.4-r1-s2 (including) 19.4-r1-s2 (including)
Junos Juniper 19.4-r1-s3 (including) 19.4-r1-s3 (including)
Junos Juniper 19.4-r1-s4 (including) 19.4-r1-s4 (including)
Junos Juniper 19.4-r2 (including) 19.4-r2 (including)
Junos Juniper 19.4-r2-s1 (including) 19.4-r2-s1 (including)
Junos Juniper 19.4-r2-s2 (including) 19.4-r2-s2 (including)
Junos Juniper 19.4-r2-s3 (including) 19.4-r2-s3 (including)
Junos Juniper 19.4-r2-s4 (including) 19.4-r2-s4 (including)
Junos Juniper 19.4-r3 (including) 19.4-r3 (including)
Junos Juniper 19.4-r3-s1 (including) 19.4-r3-s1 (including)
Junos Juniper 19.4-r3-s2 (including) 19.4-r3-s2 (including)
Junos Juniper 19.4-r3-s3 (including) 19.4-r3-s3 (including)
Junos Juniper 19.4-r3-s4 (including) 19.4-r3-s4 (including)
Junos Juniper 20.1 (including) 20.1 (including)
Junos Juniper 20.1-r1 (including) 20.1-r1 (including)
Junos Juniper 20.1-r1-s1 (including) 20.1-r1-s1 (including)
Junos Juniper 20.1-r1-s2 (including) 20.1-r1-s2 (including)
Junos Juniper 20.1-r1-s3 (including) 20.1-r1-s3 (including)
Junos Juniper 20.1-r1-s4 (including) 20.1-r1-s4 (including)
Junos Juniper 20.1-r2 (including) 20.1-r2 (including)
Junos Juniper 20.1-r2-s1 (including) 20.1-r2-s1 (including)
Junos Juniper 20.1-r2-s2 (including) 20.1-r2-s2 (including)
Junos Juniper 20.1-r3 (including) 20.1-r3 (including)
Junos Juniper 20.1-r3-s1 (including) 20.1-r3-s1 (including)
Junos Juniper 20.1-r3-s2 (including) 20.1-r3-s2 (including)
Junos Juniper 20.2 (including) 20.2 (including)
Junos Juniper 20.2-r1 (including) 20.2-r1 (including)
Junos Juniper 20.2-r1-s1 (including) 20.2-r1-s1 (including)
Junos Juniper 20.2-r1-s2 (including) 20.2-r1-s2 (including)
Junos Juniper 20.2-r1-s3 (including) 20.2-r1-s3 (including)
Junos Juniper 20.2-r2 (including) 20.2-r2 (including)
Junos Juniper 20.2-r2-s1 (including) 20.2-r2-s1 (including)
Junos Juniper 20.2-r2-s2 (including) 20.2-r2-s2 (including)
Junos Juniper 20.2-r2-s3 (including) 20.2-r2-s3 (including)
Junos Juniper 20.2-r3 (including) 20.2-r3 (including)
Junos Juniper 20.2-r3-s1 (including) 20.2-r3-s1 (including)
Junos Juniper 20.2-r3-s2 (including) 20.2-r3-s2 (including)
Junos Juniper 20.3 (including) 20.3 (including)
Junos Juniper 20.3-r1 (including) 20.3-r1 (including)
Junos Juniper 20.3-r1-s1 (including) 20.3-r1-s1 (including)
Junos Juniper 20.3-r2 (including) 20.3-r2 (including)
Junos Juniper 20.3-r2-s1 (including) 20.3-r2-s1 (including)
Junos Juniper 20.3-r3 (including) 20.3-r3 (including)
Junos Juniper 20.4 (including) 20.4 (including)
Junos Juniper 20.4-r1 (including) 20.4-r1 (including)
Junos Juniper 20.4-r1-s1 (including) 20.4-r1-s1 (including)
Junos Juniper 20.4-r2 (including) 20.4-r2 (including)
Junos Juniper 20.4-r2-s1 (including) 20.4-r2-s1 (including)
Junos Juniper 20.4-r2-s2 (including) 20.4-r2-s2 (including)
Junos Juniper 21.1 (including) 21.1 (including)
Junos Juniper 21.1-r1 (including) 21.1-r1 (including)
Junos Juniper 21.1-r1-s1 (including) 21.1-r1-s1 (including)
Junos Juniper 21.1-r2 (including) 21.1-r2 (including)
Junos Juniper 21.2 (including) 21.2 (including)
Junos Juniper 21.2-r1 (including) 21.2-r1 (including)

Potential Mitigations

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.

References

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