Gcc
CVE-2021-37322
HIGH
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A local attacker with access to the system could access freed memory to execute arbitrary code or crash the application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.
Affects your stack
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Technical ContextAI · show details
This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c. Affected products include: Gnu Binutils, Gnu Gcc.
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new. Rated m
**DISPUTED**A failure in the -fstack-protector feature in GCC-based toolchains that target AArch64 allows an attacker to
The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the __builtin_dar
Use-after-free in GCC's libstdc++ handling of erase_if on a binary-heap priority queue (std::priority_queue) allows unau
Denial of service in GCC libstdc++ occurs when an affected application extracts data into a std::bitset from a wide-char
Denial of service in GCC's libstdc++ parallel-mode search implementation allows a local attacker who can supply crafted
An integer wrap in GCC's libstdc++ std::vector<bool> element-count handling can leave the container internally inconsist
The Groups, Communities and Co (GCC) module 7.x-1.x before 7.x-1.1 for Drupal does not properly check permission, which
The std::random_device class in libstdc++ in the GNU Compiler Collection (aka GCC) before 4.9.4 does not properly handle
Under certain circumstances, the ix86_expand_builtin function in i386.c in GNU Compiler Collection (GCC) version 4.6, 4.
An out-of-bounds read exists in GCC's libstdc++ implementation of std::from_chars(), which is reached when a program pas
GitHub PoC
Exploit-DB