CVE-2021-3345

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

_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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Jan 29, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-334505.5An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_calloc() in nasmlib/alloc.c.CVE-2021-334515.5An issue was discovered in lrzip version 0.641. There are memory leaks in fill_buffer() in stream.c.CVE-2021-334525.5An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_malloc() in nasmlib/alloc.c.CVE-2021-334537.8An issue was discovered in lrzip version 0.641. There is a use-after-free in ucompthread() in stream.c:1538.CVE-2021-334545.5An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in yasm_expr_get_intnum() in libyasm/expr.c.CVE-2021-334555.5An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in do_directive() in modules/preprocs/nasm/nasm-pp.c.CVE-2021-334565.5An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in hash() in modules/preprocs/nasm/nasm-pp.c.CVE-2021-334575.5An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in expand_mmac_params() in modules/preprocs/nasm/nasm-pp.CVE-2021-334585.5An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in find_cc() in modules/preprocs/nasm/nasm-pp.c.CVE-2021-334595.5An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in nasm_parser_directive() in modules/parsers/nasm/nasm-pCVE-2021-33469.8Foris before 101.1.1, as used in Turris OS, lacks certain HTML escaping in the login template.CVE-2021-334605.5An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in if_condition() in modules/preprocs/nasm/nasm-pp.c.
CVE-2021-3345: High severity, CVSS 7.8 | Vulnix