Out-of-bounds Write Affecting libgcrypt package, versions [1.8.4,1.10.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.06% (61st percentile)

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  • Snyk IDSNYK-CONAN-LIBGCRYPT-10076572
  • published8 May 2025
  • disclosed29 Jan 2021
  • creditUnknown

Introduced: 29 Jan 2021

CVE-2021-3345  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade libgcrypt to version 1.10.3 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write. _gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.

References

CVSS Base Scores

version 3.1