← Vulnerability feed

Vulnerability record · CVE-2010-3864 · published 17 November 2010

CVE-2010-3864: Openssl race condition vulnerability

OOpenssl · Openssl

Multiple race conditions in ssl/t1_lib.c in OpenSSL 0.9.8f through 0.9.8o, 1.0.0, and 1.0.0a, when multi-threading and internal caching are enabled on a TLS server, might allow remote attackers to execute arbitrary code via client data that triggers a heap-based buffer overflow, related to (1) the TLS server name extension and (2) elliptic curve cryptography.

7.6 CVSS 2.0 High EPSS 22% · top 2.4% CWE-362 · Race condition
7.6CVSS 2.0 base score
22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
78References
16 Jun 2026Last modified by NVD

Description

Multiple race conditions in ssl/t1_lib.c in OpenSSL 0.9.8f through 0.9.8o, 1.0.0, and 1.0.0a, when multi-threading and internal caching are enabled on a TLS server, might allow remote attackers to execute arbitrary code via client data that triggers a heap-based buffer overflow, related to (1) the TLS server name extension and (2) elliptic curve cryptography.

AV:N/AC:H/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://blogs.sun.com/security/entry/cve_2010_3864_race_condition
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051170.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051237.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051255.html
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00006.html
http://marc.info/?l=bugtraq&m=129916880600544&w=2
http://marc.info/?l=bugtraq&m=130497251507577&w=2
http://marc.info/?l=bugtraq&m=132828103218869&w=2
http://openssl.org/news/secadv_20101116.txt PatchVendor Advisory
http://secunia.com/advisories/42241
http://secunia.com/advisories/42243 Vendor Advisory
http://secunia.com/advisories/42309
http://secunia.com/advisories/42336
http://secunia.com/advisories/42352
http://secunia.com/advisories/42397
http://secunia.com/advisories/42413
http://secunia.com/advisories/43312
http://secunia.com/advisories/44269
http://secunia.com/advisories/57353
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:10.openssl.asc
http://securitytracker.com/id?1024743 Patch
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.668793
http://support.apple.com/kb/HT4723
http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
http://www.adobe.com/support/security/bulletins/apsb11-11.html
http://www.debian.org/security/2010/dsa-2125
http://www.kb.cert.org/vuls/id/737740 US Government Resource
http://www.securityfocus.com/archive/1/516397/100/0/threaded
http://www.vmware.com/security/advisories/VMSA-2011-0003.html
http://www.vupen.com/english/advisories/2010/3041
http://www.vupen.com/english/advisories/2010/3077
http://www.vupen.com/english/advisories/2010/3097
http://www.vupen.com/english/advisories/2010/3121
https://bugzilla.redhat.com/show_bug.cgi?id=649304 Patch
https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000101.html
https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000102.html
https://rhn.redhat.com/errata/RHSA-2010-0888.html
http://blogs.sun.com/security/entry/cve_2010_3864_race_condition

Track CVE-2010-3864 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2014-0160OpenSSL TLS/DTLS Heartbeat Extension Out-of-Bounds Read (Heartbleed)OpenSSL 1.0.1 before 1.0.1g mishandles Heartbeat Extension packets in its TLS and DTLS implementations, causing an out-of-bounds read of process memo…KEVEPSS 100%analysed10.0CVE-2009-3245Openssl improper input validation vulnerabilityOpenSSL before 0.9.8m does not check for a NULL return value from bn_wexpand function calls in (1) crypto/bn/bn_div.c, (2) crypto/bn/bn_gf2m.c, (3) c…EPSS 6.5%10.0CVE-2006-3738OpenSSL SSL_get_shared_ciphers buffer overflow via long cipher listOpenSSL versions before 0.9.7l and 0.9.8d contain a buffer overflow in the SSL_get_shared_ciphers function, triggered by a long list of ciphers. The …EPSS 49%analysed9.8CVE-2026-63073Openssl vulnerabilityIssue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_da…EPSS 1.2%9.8CVE-2026-31789Openssl out-of-bounds write vulnerabilityIssue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact…EPSS 0.33%9.8CVE-2022-2274OpenSSL 3.0.4 RSA AVX512IFMA memory corruptionOpenSSL 3.0.4 introduced a bug in the RSA implementation for X86_64 CPUs supporting AVX512IFMA instructions, causing 2048-bit private key operations …EPSS 46%analysed9.8CVE-2021-3711OpenSSL SM2 decryption buffer overflowOpenSSL's SM2 decryption code miscalculates the output buffer size needed by EVP_PKEY_decrypt(), so the first sizing call can return a value smaller …EPSS 88%analysed9.8CVE-2016-6309OpenSSL 1.1.0a statem use-after-free on realloc in TLS session handlingOpenSSL 1.1.0a's statem/statem.c fails to account for memory-block movement after a realloc call, leaving a dangling pointer that can be used after f…EPSS 70%analysed

Source: NIST National Vulnerability Database (record CVE-2010-3864), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.