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CVE-2010-0211

CRITICALCVSS 9.8/10EPSS 29.24%

Last modified

CVE-2010-0211 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.. EPSS estimates a 29.24% chance of exploitation in the next 30 days.

Description

The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
29.24%

97.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpenldapOpenldap2.4.22
VmwareEsxi4.0
VmwareEsxi4.1
OpensuseOpensuse11.0
AppleMac Os X>= 10.6.0, < 10.6.5
AppleMac Os X Server>= 10.6.0, < 10.6.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2010-0211?
The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.
How severe is CVE-2010-0211?
CVE-2010-0211 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 29.24% probability of exploitation in the next 30 days.
How do I fix CVE-2010-0211?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2010-0211?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST