CVE-2015-5333

HIGHNVD 7.57.5—

7.5

Memory leak in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denial of service (memory consumption) via a large number of ASN.1 object identifiers in X.509 certificates.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 84.3%
KEV: Not listed

Published

January 23, 2020

Last Modified

November 21, 2024

References (8)

secalert@redhathttp://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.3.1-relnotes.txt
secalert@redhathttp://lists.opensuse.org/opensuse-updates/2015-10/msg00050.html
secalert@redhathttp://packetstormsecurity.com/files/133998/Qualys-Security-Advisory-LibreSSL-Leak-Overflow.html
secalert@redhathttp://www.securityfocus.com/archive/1/archive/1/536692/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.3.1-relnotes.txt
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2015-10/msg00050.html
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/133998/Qualys-Security-Advisory-LibreSSL-Leak-Overflow.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/archive/1/536692/100/0/threaded

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 9× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 08:45 UTCEG score recompute
2026-05-27 08:45 UTCGHSA enrichment
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch

Frequently asked(5)

What is CVE-2015-5333?

CVE-2015-5333 is a high vulnerability published on January 23, 2020. Memory leak in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denial of service (memory consumption) via a large number of ASN.1 object identifiers in X.509 certificates.

When was CVE-2015-5333 disclosed?

CVE-2015-5333 was first published in the National Vulnerability Database on January 23, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-5333 actively exploited?

CVE-2015-5333 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-5333?

CVE-2015-5333 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2015-5333?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5333, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2015-5333

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2015-5333?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)