NULL pointer dereference in OpenSSL - CVE-2015-0208
Published: December 16, 2022
Vulnerability identifier: #VU70401
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-0208
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenSSL Software Foundation
Affected software:
OpenSSL
OpenSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the ASN.1 signature-verification implementation in the rsa_item_verify function in crypto/rsa/rsa_ameth.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2015-0208
Install update from vendor's website.
Sources
- https://www.openssl.org/news/secadv_20150319.txt
- https://git.openssl.org/?p=openssl.git;a=commit;h=4b22cce3812052fe64fc3f6d58d8cc884e3cb834
- https://bugzilla.redhat.com/show_bug.cgi?id=1202369
- http://www.securitytracker.com/id/1031929
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- https://bto.bluecoat.com/security-advisory/sa92
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://marc.info/?l=bugtraq&m=144050297101809&w=2
- http://marc.info/?l=bugtraq&m=143748090628601&w=2
- http://marc.info/?l=bugtraq&m=144050155601375&w=2
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- http://www.securityfocus.com/bid/73230
- https://security.gentoo.org/glsa/201503-11
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html