PT-2015-1683 · Openssl+1 · Openssl+3

Per Allansson · Published 2015-03-19 · Updated 2022-12-13 · CVE-2015-0207

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions OpenSSL versions 1.0.2 through 1.0.2a (excluding 1.0.2a)

Description The issue is related to the dtls1 listen function in OpenSSL, which does not properly isolate state information of independent data streams. This can be exploited by a remote attacker to cause a denial of service via crafted DTLS traffic. The attacker can generate DTLS traffic to cause the application to crash due to incorrect pointer dereferences.

Recommendations For OpenSSL versions 1.0.2 through 1.0.2a (excluding 1.0.2a), update to version 1.0.2a or later to resolve the issue. As a temporary workaround, consider restricting DTLS traffic to minimize the risk of exploitation.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2015-11029

CVE-2015-0207

Affected Products

Cisco Asa

Cisco Ios Xe

Cisco Nexus

Openssl

References · 22

• https://security.gentoo.org/glsa/201503-11 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2015-0207 · Security Note
• http://marc.info/?l=bugtraq&m=144050155601375&w=2 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-11029 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150320-openssl · Vendor Advisory
• http://marc.info/?l=bugtraq&m=144050297101809&w=2 · Vendor Advisory
• http://oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html · Patch
• http://marc.info/?l=bugtraq&m=143748090628601&w=2 · Vendor Advisory
• https://openssl.org/news/secadv_20150319.txt · Vendor Advisory
• http://oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0207 · Note
• http://oracle.com/technetwork/topics/security/cpujul2015-2367936.html · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=1202351 · Note
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf · Note
• https://git.openssl.org/?p=openssl.git;a=commit;h=819418110b6fff4a7b96f01a5d68f71df3e3b736 · Note