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TI-2016-00716 Aliases CVE-2016-0799GHSA-x493-jjcm-ffg2

The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2…

Priority HIGH 67CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 21 fixed, 8 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.32414 98th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 21 fixed, 8 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 35

CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:1.0.1:*:*:*:*:*:*:*1.0.1VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1:beta1:*:*:*:*:*:*1.0.1 beta1VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1:beta2:*:*:*:*:*:*1.0.1 beta2VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1:beta3:*:*:*:*:*:*1.0.1 beta3VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1a:*:*:*:*:*:*:*1.0.1aVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1b:*:*:*:*:*:*:*1.0.1bVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1c:*:*:*:*:*:*:*1.0.1cVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1d:*:*:*:*:*:*:*1.0.1dVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1e:*:*:*:*:*:*:*1.0.1eVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1f:*:*:*:*:*:*:*1.0.1fVulnerableOpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1:beta1:*:*:*:*:*:* Versions 1.0.1 beta1 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1:beta2:*:*:*:*:*:* Versions 1.0.1 beta2 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1:beta3:*:*:*:*:*:* Versions 1.0.1 beta3 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1a:*:*:*:*:*:*:* Versions 1.0.1a Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1b:*:*:*:*:*:*:* Versions 1.0.1b Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1c:*:*:*:*:*:*:* Versions 1.0.1c Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1d:*:*:*:*:*:*:* Versions 1.0.1d Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1e:*:*:*:*:*:*:* Versions 1.0.1e Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1f:*:*:*:*:*:*:* Versions 1.0.1f Vulnerable ·OpenSSL
Show 25 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:1.0.1g:*:*:*:*:*:*:*1.0.1gVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1h:*:*:*:*:*:*:*1.0.1hVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1i:*:*:*:*:*:*:*1.0.1iVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1j:*:*:*:*:*:*:*1.0.1jVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1k:*:*:*:*:*:*:*1.0.1kVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1l:*:*:*:*:*:*:*1.0.1lVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1m:*:*:*:*:*:*:*1.0.1mVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1n:*:*:*:*:*:*:*1.0.1nVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1o:*:*:*:*:*:*:*1.0.1oVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1p:*:*:*:*:*:*:*1.0.1pVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1q:*:*:*:*:*:*:*1.0.1qVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.1r:*:*:*:*:*:*:*1.0.1rVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:*1.0.2VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:*1.0.2 beta1VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:*1.0.2 beta2VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:*1.0.2 beta3VulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:*1.0.2aVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:*1.0.2bVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:*1.0.2cVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:*1.0.2dVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:*1.0.2eVulnerableOpenSSL
cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:*1.0.2fVulnerableOpenSSL
cpe:2.3:a:pulsesecure:client:-:*:*:*:*:android:*:*not specified by NVDVulnerablePulse Secure
cpe:2.3:a:pulsesecure:client:-:*:*:*:*:iphone_os:*:*not specified by NVDVulnerablePulse Secure
cpe:2.3:a:pulsesecure:steel_belted_radius:-:*:*:*:*:*:*:*not specified by NVDVulnerablePulse Secure
  • cpe:2.3:a:openssl:openssl:1.0.1g:*:*:*:*:*:*:* Versions 1.0.1g Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1h:*:*:*:*:*:*:* Versions 1.0.1h Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1i:*:*:*:*:*:*:* Versions 1.0.1i Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1j:*:*:*:*:*:*:* Versions 1.0.1j Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1k:*:*:*:*:*:*:* Versions 1.0.1k Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1l:*:*:*:*:*:*:* Versions 1.0.1l Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1m:*:*:*:*:*:*:* Versions 1.0.1m Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1n:*:*:*:*:*:*:* Versions 1.0.1n Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1o:*:*:*:*:*:*:* Versions 1.0.1o Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1p:*:*:*:*:*:*:* Versions 1.0.1p Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1q:*:*:*:*:*:*:* Versions 1.0.1q Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.1r:*:*:*:*:*:*:* Versions 1.0.1r Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:* Versions 1.0.2 beta1 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:* Versions 1.0.2 beta2 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:* Versions 1.0.2 beta3 Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:* Versions 1.0.2a Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:* Versions 1.0.2b Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:* Versions 1.0.2c Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:* Versions 1.0.2d Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:* Versions 1.0.2e Vulnerable ·OpenSSL
  • cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:* Versions 1.0.2f Vulnerable ·OpenSSL
  • cpe:2.3:a:pulsesecure:client:-:*:*:*:*:android:*:* Versions not specified by NVD Vulnerable ·Pulse Secure
  • cpe:2.3:a:pulsesecure:client:-:*:*:*:*:iphone_os:*:* Versions not specified by NVD Vulnerable ·Pulse Secure
  • cpe:2.3:a:pulsesecure:steel_belted_radius:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Pulse Secure

Remediation

Red Hat 4 advisories

  • RHSA-2016:2957 Released 2016-12-15 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP 2.4.23 Release
    • Red Hat JBoss Core Services
  • RHSA-2016:2073 Released 2016-10-18 · Red Hat rating Important
    openssl security update
    • Red Hat Enterprise Linux HPC Node EUS (v. 6.7) openssl-1.0.1e-42.el6_7.5
    • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) openssl-devel-1.0.1e-42.el6_7.5, openssl-perl-1.0.1e-42.el6_7.5, openssl-static-1.0.1e-42.el6_7.5
    • Red Hat Enterprise Linux Server EUS (v. 6.7) openssl-1.0.1e-42.el6_7.5, openssl-1.0.1e-42.el6_7.5.ppc, openssl-devel-1.0.1e-42.el6_7.5 +1
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.7) openssl-perl-1.0.1e-42.el6_7.5, openssl-static-1.0.1e-42.el6_7.5
  • RHSA-2016:0996 Released 2016-05-10 · Red Hat rating Important
    openssl security update
    • Red Hat Enterprise Linux Desktop (v. 6) openssl-1.0.1e-48.el6_8.1
    • Red Hat Enterprise Linux Desktop Optional (v. 6) openssl-devel-1.0.1e-48.el6_8.1, openssl-perl-1.0.1e-48.el6_8.1, openssl-static-1.0.1e-48.el6_8.1
    • Red Hat Enterprise Linux HPC Node (v. 6) openssl-1.0.1e-48.el6_8.1
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) openssl-devel-1.0.1e-48.el6_8.1, openssl-perl-1.0.1e-48.el6_8.1, openssl-static-1.0.1e-48.el6_8.1
    • Red Hat Enterprise Linux Server (v. 6) openssl-1.0.1e-48.el6_8.1, openssl-1.0.1e-48.el6_8.1.ppc, openssl-devel-1.0.1e-48.el6_8.1 +1
    • Red Hat Enterprise Linux Server Optional (v. 6) openssl-perl-1.0.1e-48.el6_8.1, openssl-static-1.0.1e-48.el6_8.1
    • Red Hat Enterprise Linux Workstation (v. 6) openssl-1.0.1e-48.el6_8.1, openssl-devel-1.0.1e-48.el6_8.1
    • Red Hat Enterprise Linux Workstation Optional (v. 6) openssl-perl-1.0.1e-48.el6_8.1, openssl-static-1.0.1e-48.el6_8.1
Show 1 more Red Hat advisories
  • RHSA-2016:0722 Released 2016-05-09 · Red Hat rating Important
    openssl security update
    • Red Hat Enterprise Linux Client (v. 7) openssl-1:1.0.1e-51.el7_2.5, openssl-libs-1:1.0.1e-51.el7_2.5
    • Red Hat Enterprise Linux Client Optional (v. 7) openssl-devel-1:1.0.1e-51.el7_2.5, openssl-perl-1:1.0.1e-51.el7_2.5, openssl-static-1:1.0.1e-51.el7_2.5
    • Red Hat Enterprise Linux ComputeNode (v. 7) openssl-1:1.0.1e-51.el7_2.5, openssl-libs-1:1.0.1e-51.el7_2.5
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssl-devel-1:1.0.1e-51.el7_2.5, openssl-perl-1:1.0.1e-51.el7_2.5, openssl-static-1:1.0.1e-51.el7_2.5
    • Red Hat Enterprise Linux Server (v. 7) openssl-1:1.0.1e-51.el7_2.5, openssl-devel-1:1.0.1e-51.el7_2.5, openssl-devel-1:1.0.1e-51.el7_2.5.ppc +2
    • Red Hat Enterprise Linux Server Optional (v. 7) openssl-perl-1:1.0.1e-51.el7_2.5, openssl-static-1:1.0.1e-51.el7_2.5, openssl-static-1:1.0.1e-51.el7_2.5.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) openssl-1:1.0.1e-51.el7_2.5, openssl-devel-1:1.0.1e-51.el7_2.5, openssl-libs-1:1.0.1e-51.el7_2.5
    • Red Hat Enterprise Linux Workstation Optional (v. 7) openssl-perl-1:1.0.1e-51.el7_2.5, openssl-static-1:1.0.1e-51.el7_2.5

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Virtualization 3Affected—
Red Hat JBoss Core ServicesAffectedNo fix yet
Red Hat JBoss Enterprise Web Server 1AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Web Server 2AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Web Server 3AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:0722
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:0722
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:0722
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:0722
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux HPC Node EUS (v. 6.7)Fixed RHSA-2016:2073
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7)Fixed RHSA-2016:2073
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:0722
Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2016:2073
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:0722
Red Hat Enterprise Linux Server Optional EUS (v. 6.7)Fixed RHSA-2016:2073
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:0722
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2016:0996
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:0722
Red Hat JBoss Core ServicesFixed RHSA-2016:2957

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-0799
  2. 2026-10-03 Alias added: GHSA-x493-jjcm-ffg2

References

Advisory 29

Other 27

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences