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Details of issue NIXPKGS-2026-2386

NIXPKGS-2026-2386
published 1 month ago
wordexp with WRDE_APPEND can return or use invalid memory
Permalink CVE-2026-6368
2.1 LOW
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): High (H)
  • Attack Requirement (AT): Present (P)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Vulnerable System Impact Confidentiality (VC): Low (L)
  • Vulnerable System Impact Integrity (VI): Low (L)
  • Vulnerable System Impact Availability (VA): Low (L)
  • Subsequent System Impact Confidentiality (SC): Low (L)
  • Subsequent System Impact Integrity (SI): Low (L)
  • Subsequent System Impact Availability (SA): Low (L)
  • Safety (S): Present (P)
  • Automatable (AU): Yes (Y)
  • Provider Urgency (U): Green (Green)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Attack Requirement (MAT): Present (P)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
  • Modified Vulnerable System Impact Integrity (MVI): Low (L)
  • Modified Vulnerable System Impact Availability (MVA): Low (L)
  • Modified Subsequent System Impact Confidentiality (MSC): Low (L)
  • Modified Subsequent System Impact Integrity (MSI): Low (L)
  • Modified Subsequent System Impact Availability (MSA): Low (L)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
updated 1 month ago by @LeSuisse Activity log
  • Created suggestion 1 month ago
  • @LeSuisse ignored
    15 packages
    • iconv
    • getent
    • mtrace
    • glibcInfo
    • glibcLocales
    • glibc_memusage
    • glibcLocalesUtf8
    • unixtools.getent
    • unixtools.locale
    • unixtools.getconf
    • minimal-bootstrap.glibc
    • glibc_multi
    • libiconv
    • getconf
    • locale
    1 month ago
  • @LeSuisse accepted 1 month ago
  • @LeSuisse published on GitHub 1 month ago
wordexp with WRDE_APPEND can return or use invalid memory

Calling wordexp with WRDE_APPEND in the GNU C Library version 2.0 to version 2.43 can cause the interface to return invalid memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.

Affected products

glibc
  • <2.43

Matching in nixpkgs

Ignored packages (15)

pkgs.mtrace

Perl script used to interpret and provide human readable output of the trace log contained in the file mtracedata, whose contents were produced by mtrace(3)

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