7.5

CVE-2020-12243: apple mac_os_x Uncontrolled Recursion

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2020-12243SUSE-SU-2020:1193-1SUSE-SU-2020:1219-1
Published 28-04-2020Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2020-12243 is a high (CVSS 7.5) Uncontrolled Recursion vulnerability in apple mac_os_x. EPSS estimates a 4.72% chance of exploitation in the next 30 days, higher than 91.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
4.72%
0%100%
Low · +0.30 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2020-0200SUSE-SU-2020:1210-1

Timeline

  1. 28-04-2020
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

4.72%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

+0.30 pp

From 4.42% on 19-09-2026

19-09-202619-10-2026
EPSS score
4.72%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugs.openldap.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Suse29 products
  • openldap2-client-openssl1&distro=SUSE Linux Enterprise Server 11-SECURITY< 2.4.26-0.74.9.1
  • openldap2-client&distro=SUSE Linux Enterprise Point of Sale 11 SP3< 2.4.26-0.74.9.1
  • openldap2-client&distro=SUSE Linux Enterprise Server 11 SP4-LTSS< 2.4.26-0.74.9.1
  • openldap2&distro=HPE Helion OpenStack 8< 2.4.41-18.68.1
  • openldap2&distro=SUSE Enterprise Storage 5< 2.4.41-18.68.1
Netapp10 products
Redhat6 products
  • openldap< 0:2.4.44-22.el7
  • openldap-clients< 0:2.4.44-22.el7
  • openldap-debuginfo< 0:2.4.44-22.el7
  • openldap-devel< 0:2.4.44-22.el7
  • openldap-servers< 0:2.4.44-22.el7
Debian2 products
  • openldap< 2.4.44+dfsg-5+deb9u4 | < 2.4.47+dfsg-3+deb10u2 | < 2.4.40+dfsg-1+deb8u6 | < 2.4.50+dfsg-1
  • debian_linuxEOL8.0 | 9.0 | 10.0
Opensuse2 products
  • leapEOL15.1
  • openldap2&distro=openSUSE Leap 15.1< 2.4.46-lp151.10.9.1
Oracle2 products
Alpine1 product
  • openldap< 2.4.48-r1 | < 2.4.48-r2 | < 2.4.50-r0
Apple1 product
  • mac_os_x≥ 10.13.0, < 10.13.6 | ≥ 10.14.0, < 10.14.6 | ≥ 10.15, < 10.15.6 | 10.13.6:security_update_2018-002 | 10.13.6:security_update_2018-003 | 10.13.6:security_update_2019-001 | 10.13.6:security_update_2019-002 | 10.13.6:security_update_2019-003 | 10.13.6:security_update_2019-004 | 10.13.6:security_update_2019-005 | 10.13.6:security_update_2019-006 | 10.13.6:security_update_2019-007 | 10.13.6:security_update_2020-001 | 10.13.6:security_update_2020-002 | 10.13.6:security_update_2020-003 | 10.13.6:supplemental_update | 10.14.6:security_update_2019-001 | 10.14.6:security_update_2019-002 | 10.14.6:security_update_2019-004 | 10.14.6:security_update_2019-005 | 10.14.6:security_update_2019-006 | 10.14.6:security_update_2019-007 | 10.14.6:security_update_2020-001 | 10.14.6:security_update_2020-002 | 10.14.6:security_update_2020-003 | 10.14.6:security_update_2020-004 | 10.14.6:security_update_2020-005 | 10.14.6:security_update_2020-006 | 10.14.6:security_update_2020-007 | 10.14.6:security_update_2021-001 | 10.14.6:security_update_2021-002 | 10.14.6:security_update_2021-003 | 10.14.6:supplemental_update | 10.14.6:supplemental_update_2
Broadcom1 product
Canonical1 product
  • ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 19.10 | 20.04
Openldap1 product
Ubuntu1 product
  • openldap< 2.4.42+dfsg-2ubuntu3.8 | < 2.4.45+dfsg-1ubuntu1.5 | < 2.4.49+dfsg-2ubuntu1.2 | < 2.4.31-1+nmu2ubuntu8.5+esm2

12 vendors · 57 products

References

33 links
Show all 33 references