cbcvebase.
CVE-2014-3506
published 2014-08-13

CVE-2014-3506: d1_both.c in the DTLS implementation in OpenSSL 0.9.8 before 0.9.8zb, 1.0.0 before 1.0.0n, and 1.0.1 before 1.0.1i allows remote attackers to cause a denial of…

PriorityP335medium5CVSS 2.0
AVNACLAuNCNINAP
EPSS
44.25%
98.6th percentile
d1_both.c in the DTLS implementation in OpenSSL 0.9.8 before 0.9.8zb, 1.0.0 before 1.0.0n, and 1.0.1 before 1.0.1i allows remote attackers to cause a denial of service (memory consumption) via crafted DTLS handshake messages that trigger memory allocations corresponding to large length values.

Affected

56 ranges· showing 25
VendorProductVersion rangeFixed in
debianopenssl< openssl 1.0.1i-1 (bookworm)openssl 1.0.1i-1 (bookworm)
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl
opensslopenssl

Detection & IOCsextracted from sources · hover to see the quote

  • The vulnerability is triggered by crafted DTLS handshake messages with large length values sent to a DTLS server or client running OpenSSL; monitor for anomalously large DTLS handshake message length fields that cause excessive memory allocation in d1_both.c
  • A remote attacker can exploit this against both DTLS servers and clients; detection should cover both roles for unusual memory growth during DTLS handshake phases
  • ·Memory consumed during the attack is freed once the DoS attack ceases; memory exhaustion is transient and may not leave persistent forensic artifacts
  • ·openssl097a on Red Hat Enterprise Linux 5 is not affected; ensure version checks in detection rules exclude this package

CVSS provenance

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv5.0MEDIUM
vendor_debian5.0MEDIUM
vendor_redhat5.0MEDIUM
vendor_ubuntu5.0MEDIUM
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