CVE Feed

    Dashboard / CVE / CVE-2021-27419

    CVE-2021-27419

    uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in functions malloc-simple. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

    Published:May 3, 2022
    Last Modified:Apr 16, 2025
    EPS:May 3, 2022
    EPSS Score:0.03141
    CVSS Score:7.3

    Affected Products

    Vendor
    Uclibc-ng Project
    Product
    Uclibc-ng

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2022-29503 (CVSS 9.8) — A memory corruption vulnerability exists in the libpthread linuxthreads functionality of uClibC 0.9.33.2 and u…
    CVE-2022-30295 (CVSS 6.5) — uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS …
    CVE-2021-43523 (CVSS 9.6) — In uClibc and uClibc-ng before 1.0.39, incorrect handling of special characters in domain names returned by DN…
    CVE-2016-2225 (CVSS 7.5) — The __read_etc_hosts_r function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to …
    CVE-2016-2224 (CVSS 7.5) — The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cau…
    CVE-2016-6264 (CVSS 7.5) — Integer signedness error in libc/string/arm/memset.S in uClibc and uClibc-ng before 1.0.16 allows context-depe…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High