CVE-2021-27419 — Integer Overflow or Wraparound in Uclibc-ng

CWE-190 — Integer Overflow or Wraparound5 documents5 sources
Severity
9.8CRITICALNVD
EPSS
2.6%
top 14.47%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Uclibc-ngUclibcUclibc-ng Project Uclibc-ng+1 more
Timeline
PublishedMay 3
Latest updateMay 4

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages4 packages

▶debiandebian/uclibc< uclibc 1.0.54-1 (forky)
▶CVEListV5uclibc-ng/uclibc-ngunspecified — 1.0.37
▶Debianuclibc/uclibc< 1.0.54-1

🔴Vulnerability Details

2
GHSA
GHSA-499x-cvfw-94w6: uClibc-ng versions prior to 1↗2022-05-04
▶
OSV
CVE-2021-27419: uClibc-ng versions prior to 1↗2022-05-03
▶

📋Vendor Advisories

2
CISA ICS
Multiple RTOS (Update E)↗2021-11-30
▶
Debian
CVE-2021-27419: uclibc - uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in func...↗2021
▶