Vulnerability Monitor

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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 renegotiation.

Published

2015-03-19T22:59:09.660

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	openssl	openssl	1.0.2	Yes
Application	openssl	openssl	1.0.2	Yes
Application	openssl	openssl	1.0.2	Yes
Application	openssl	openssl	1.0.2	Yes

References

http://marc.info/?l=bugtraq&m=143748090628601&w=2 Mailing List, Third Party Advisory ([email protected])
http://marc.info/?l=bugtraq&m=144050155601375&w=2 Mailing List, Third Party Advisory ([email protected])
http://marc.info/?l=bugtraq&m=144050297101809&w=2 Mailing List, Third Party Advisory ([email protected])
http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015 Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html Patch, Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/73235 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1031929 Third Party Advisory, VDB Entry ([email protected])
https://bto.bluecoat.com/security-advisory/sa92 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1202338 Issue Tracking ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf ([email protected])
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=76343947ada960b6269090638f5391068daee88d ([email protected])
https://kc.mcafee.com/corporate/index?page=content&id=SB10110 Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/201503-11 Third Party Advisory ([email protected])
https://www.openssl.org/news/secadv_20150319.txt Vendor Advisory ([email protected])
http://marc.info/?l=bugtraq&m=143748090628601&w=2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://marc.info/?l=bugtraq&m=144050155601375&w=2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://marc.info/?l=bugtraq&m=144050297101809&w=2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/73235 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1031929 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bto.bluecoat.com/security-advisory/sa92 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1202338 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf (af854a3a-2127-422b-91ae-364da2661108)
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=76343947ada960b6269090638f5391068daee88d (af854a3a-2127-422b-91ae-364da2661108)
https://kc.mcafee.com/corporate/index?page=content&id=SB10110 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201503-11 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openssl.org/news/secadv_20150319.txt Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)