CVE-2020-36221: Integer Underflow
Published Jan 25, 2021
·Updated
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service (schemainit.c serialNumberAndIssuerCheck).
Other sources
OpenLDAP. This issue was addressed with improved checks.
Credit
CVE-2020-36226, CVE-2020-36229, CVE-2020-36225, CVE-2020-36224, CVE-2020-36223, CVE-2020-36227, CVE-2020-36228, CVE-2020-36221, CVE-2020-36222, CVE-2020-36230, CVE-2020-36226, CVE-2020-36229, CVE-2020-36225, CVE-2020-36224, CVE-2020-36223, CVE-2020-36227, CVE-2020-36228, CVE-2020-36221, CVE-2020-36222, CVE-2020-36230, CVE-2020-36226, CVE-2020-36227, CVE-2020-36223, CVE-2020-36224, CVE-2020-36225, CVE-2020-36221, CVE-2020-36228, CVE-2020-36222, CVE-2020-36230, CVE-2020-36229
Affected Software
26 affected componentsFixes available
debian/openldap
2.4.47+dfsg-3+deb10u72.4.57+dfsg-3+deb11u12.5.13+dfsg-5
Apple macOS Big Sur<11.4
11.4
Apple Catalina
Apple Mojave
openldap OpenLDAP<2.4.57
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Apple iOS and macOS>=10.14.0<10.14.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-security_update_2021-003
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple macOS>=11.1<11.4
Remediation
Event History
Jan 25, 2021
CVE Published
via MITRE·09:44 AM
Data Sourced
via MITRE·09:44 AM
Description
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2021-30678
- CVE-2021-30676
- CVE-2021-30688
- CVE-2021-30669
- CVE-2021-30707
- CVE-2021-30685
- CVE-2021-30672
- CVE-2021-30681
- CVE-2021-30686
- CVE-2021-30733
- CVE-2021-30753
- CVE-2021-30727
- CVE-2021-30724
- CVE-2021-30673
- CVE-2021-30771
- CVE-2021-30755
- CVE-2021-30684
- CVE-2021-30735
- CVE-2021-30697
- CVE-2021-30710
- CVE-2021-30683
- CVE-2021-30687
- CVE-2021-30700
- CVE-2021-30701
- CVE-2021-30705
- CVE-2021-30706
- CVE-2021-30719
- CVE-2021-30728
- CVE-2021-30726
- CVE-2021-30731
- CVE-2021-30740
- CVE-2021-30704
- CVE-2021-30715
- CVE-2021-30736
- CVE-2021-30739
- CVE-2021-30703
- CVE-2021-30680
- CVE-2021-30677
- CVE-2021-30702
- CVE-2021-30696
- CVE-2021-30756
- CVE-2021-30723
- CVE-2021-30691
- CVE-2021-30692
- CVE-2021-30694
- CVE-2021-30725
- CVE-2021-30746
- CVE-2021-30693
- CVE-2021-30695
- CVE-2021-30708
- CVE-2021-30709
- CVE-2021-30679
- CVE-2020-36226
- CVE-2020-36227
- CVE-2020-36223
- CVE-2020-36224
- CVE-2020-36225
- CVE-2020-36221
- CVE-2020-36228
- CVE-2020-36222
- CVE-2020-36230
- CVE-2020-36229
- CVE-2021-30738
- CVE-2021-30751
- CVE-2021-30737
- CVE-2021-30716
- CVE-2021-30717
- CVE-2021-30721
- CVE-2021-30722
- CVE-2021-30712
- CVE-2021-30668
- CVE-2021-30718
- CVE-2021-30671
- CVE-2021-30713
- CVE-2021-30744
- CVE-2021-21779
- CVE-2021-30682
- CVE-2021-30689
- CVE-2021-30749
- CVE-2021-30734
- CVE-2021-30720
- CVE-2021-23841
- CVE-2021-30698
- CVE-2020-29629
- CVE-2021-1884
- CVE-2021-1883
- CVE-2021-30743
- CVE-2021-30819
- CVE-2021-30690
Frequently Asked Questions
1
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-36221.
2
What is the affected software?
The affected software includes macOS Big Sur, Mojave, and Catalina.
3
How was this issue addressed?
This issue was addressed with improved checks.
4
What is the severity of CVE-2020-36221?
The severity of CVE-2020-36221 is not specified.
5
How do I fix CVE-2020-36221?
To fix CVE-2020-36221, make sure you have the latest version of macOS installed.