VulnerabilityModified
CVE-2015-0291
The sigalgs implementation in t1_lib.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by using an invalid signature_algorithms extension in the ClientHello message during a…
MEDIUM 5.0EPSS 7.75%
Does this matter?
Lower severity and a low EPSS score (7.75%). Track it; it rarely justifies an emergency change on its own.
Description
The sigalgs implementation in t1_lib.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by using an invalid signature_algorithms extension in the ClientHello message during a renegotiation.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 7.75% probability · 94th percentile
- CISA KEV
- Not listed
- Affected
- openssl/openssl
- Source
- secalert@redhat.com
References
- http://marc.info/?l=bugtraq&m=143748090628601&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050155601375&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050297101809&w=2Mailing List, Third Party Advisory
- http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.htmlThird Party Advisory
- http://www.securityfocus.com/bid/73235Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1031929Third Party Advisory, VDB Entry
- https://bto.bluecoat.com/security-advisory/sa92Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1202338Issue Tracking
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=76343947ada960b6269090638f5391068daee88d
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110Third Party Advisory
- https://security.gentoo.org/glsa/201503-11Third Party Advisory
- https://www.openssl.org/news/secadv_20150319.txtVendor Advisory
- http://marc.info/?l=bugtraq&m=143748090628601&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050155601375&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050297101809&w=2Mailing List, Third Party Advisory
- http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.htmlThird Party Advisory
- http://www.securityfocus.com/bid/73235Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1031929Third Party Advisory, VDB Entry
- https://bto.bluecoat.com/security-advisory/sa92Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.