Reachable Assertion in yaml-cpp - CVE-2017-11692

Vulnerability identifier: #VU64983

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-11692

CWE-ID: CWE-617

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion in the Token& Scanner::peek() function in scanner.cpp in yaml-cpp. A remote attacker can send a specially crafted !2 string and perform a denial of service attack.

yaml-cpp
Gentoo Linux
openEuler
IBM Security Verify Access
dev-cpp/yaml-cpp
yaml-cpp
yaml-cpp-debuginfo
yaml-cpp-debugsource
yaml-cpp-devel

Install updates from vendor's website.

yaml-cpp - update to 0.6.0
IBM Security Verify Access - update to 10.0.4.0
dev-cpp/yaml-cpp - update to 0.6.3-r2
yaml-cpp - update to 0.6.3-3
yaml-cpp-debuginfo - update to 0.6.3-3
yaml-cpp-debugsource - update to 0.6.3-3
yaml-cpp-devel - update to 0.6.3-3

• https://github.com/jbeder/yaml-cpp/issues/519
• https://security.gentoo.org/glsa/202007-14

• Multiple vulnerabilities in IBM Security Verify Access
• Gentoo update for yaml-cpp
• openEuler 22.03 LTS SP4 update for yaml-cpp
• openEuler 22.03 LTS SP3 update for yaml-cpp
• openEuler 20.03 LTS SP4 update for yaml-cpp