Buffer overflow in OpenSSL - CVE-2016-0799

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Main Vulnerability Database Vulnerabilities #VU82376

Buffer overflow in OpenSSL - CVE-2016-0799

Published: October 25, 2023


Vulnerability identifier: #VU82376
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-0799
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to fmtstr function in crypto/bio/b_print.c in OpenSSL improperly calculates string lengths. A remote attacker can cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string.


Affected software

OpenSSL
Fedora
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server from RHUI
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux Server - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Slackware Linux
IBM Integrated Management Module
Integrated Management Module II (IMM2)
openssl
openssl-solibs
openssl101e
openssl (Red Hat package)
Integrated Data protection Appliance (IDPA)
Data Protection Search

How to mitigate CVE-2016-0799

Install updates from vendor's website.

OpenSSL - update to 1.0.1s
IBM Integrated Management Module - update to YUOOH2B-1.5.1
openssl - addressed in versions 0.9.8zh, 1.0.1s
openssl-solibs - addressed in versions 0.9.8zh, 1.0.1s
Integrated Management Module II (IMM2) - update to 1aoo72h-5.60
openssl101e - update to 1.0.1e-8.el5
openssl (Red Hat package) - addressed in versions 1.0.1e-42.el6_7.5, 1.0.1e-48.el6_8.1, 1.0.1e-51.el7_2.5
openssl - addressed in versions 1.0.1k-14.fc22, 1.0.2g-1.fc23, 1.0.2g-2.fc23
Integrated Data protection Appliance (IDPA) - update to 2.7.8 with DP Search 19.6.6
Data Protection Search - update to 19.6.6

External References

Related Security Bulletins