CVE-2016-0799
The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have…
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EPSS puts the probability of exploitation in the next 30 days at 32.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 32.41% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- openssl/openssl · pulsesecure/client · pulsesecure/steel belted radius
- Source
- secalert@redhat.com
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html
- http://marc.info/?l=bugtraq&m=145983526810210&w=2
- http://marc.info/?l=bugtraq&m=146108058503441&w=2
- http://openssl.org/news/secadv/20160301.txtVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0722.html
- http://rhn.redhat.com/errata/RHSA-2016-0996.html
- http://rhn.redhat.com/errata/RHSA-2016-2073.html
- http://rhn.redhat.com/errata/RHSA-2016-2957.html
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl
- http://www.debian.org/security/2016/dsa-3500
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.