Логотип exploitDog
Консоль
Логотип exploitDog

exploitDog

ubuntu логотип

CVE-2026-27820

Опубликовано: 16 апр. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 9.8

Описание

zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 contain a buffer overflow vulnerability in the Zlib::GzipReader. The zstream_buffer_ungets function prepends caller-provided bytes ahead of previously produced output but fails to guarantee the backing Ruby string has enough capacity before the memmove shifts the existing data. This can lead to memory corruption when the buffer length exceeds capacity. This issue has been fixed in versions 3.0.1, 3.1.2 and 3.2.3.

РелизСтатусПримечание
devel

needs-triage

esm-apps-legacy/xenial

needs-triage

esm-apps/bionic

needs-triage

esm-apps/focal

needs-triage

esm-apps/noble

needs-triage

esm-apps/resolute

needs-triage

esm-apps/xenial

ignored

end of ESM support, was needs-triage
esm-infra-legacy/trusty

needs-triage

jammy

DNE

noble

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra-legacy/xenial

released

2.3.1-2~ubuntu16.04.16+esm15
esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

jammy

DNE

noble

DNE

questing

ignored

end of life, was needs-triage
resolute

needs-triage

upstream

needs-triage

Показывать по

EPSS

Процентиль: 43%
0.00561
Низкий

9.8 Critical

CVSS3

Связанные уязвимости

CVSS3: 5.6
redhat
4 месяца назад

zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 contain a buffer overflow vulnerability in the Zlib::GzipReader. The zstream_buffer_ungets function prepends caller-provided bytes ahead of previously produced output but fails to guarantee the backing Ruby string has enough capacity before the memmove shifts the existing data. This can lead to memory corruption when the buffer length exceeds capacity. This issue has been fixed in versions 3.0.1, 3.1.2 and 3.2.3.

CVSS3: 9.8
nvd
4 месяца назад

zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 contain a buffer overflow vulnerability in the Zlib::GzipReader. The zstream_buffer_ungets function prepends caller-provided bytes ahead of previously produced output but fails to guarantee the backing Ruby string has enough capacity before the memmove shifts the existing data. This can lead to memory corruption when the buffer length exceeds capacity. This issue has been fixed in versions 3.0.1, 3.1.2 and 3.2.3.

msrc
4 месяца назад

zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption

CVSS3: 9.8
debian
4 месяца назад

zlib is a Ruby interface for the zlib compression/decompression librar ...

CVSS3: 9.8
github
4 месяца назад

Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption

EPSS

Процентиль: 43%
0.00561
Низкий

9.8 Critical

CVSS3

Уязвимость CVE-2026-27820