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CVE-2015-8982

Integer overflow in the strxfrm function in the GNU C Library (aka glibc or libc6) before 2.21 allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string, which triggers a stack-based buffer overflow.

Severity
High 8.1
Published
15 Mar 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.8% in the next 30 daysHigher than 90% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Integer overflow (CWE-190)
Attack
Over the network · Only under certain conditions · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
GNU C LibraryServers and applications · cpe:a:gnu:glibc
  • Every version up to 2.20

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8982
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8982