Buffer Over-read Affecting martinh/libconfuse package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.31% (70th percentile)

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  • Snyk IDSNYK-UNMANAGED-MARTINHLIBCONFUSE-3021169
  • published11 Sept 2022
  • disclosed11 Sept 2022
  • creditkdsjZh

Introduced: 11 Sep 2022

CVE-2022-40320  (opens in a new tab)
CWE-126  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Buffer Over-read via the cfg_tilde_expand function.

PoC

CC="gcc -fsanitize=address -g " CXX="g++ -fsanitize=address -g" ./autogen.sh && ./configure --disable-shared && make -j$(nproc)
./examples/cfgtest $POC

CVSS Scores

version 3.1