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CVE-2026-63075

Опубликовано: 25 авг. 2026
Источник: ubuntu
Приоритет: low
EPSS Низкий
CVSS3: 7.5

Описание

Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection. Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the Ope...

РелизСтатусПримечание
devel

needs-triage

esm-apps-legacy/xenial

not-affected

3.4+ only
esm-apps/bionic

not-affected

3.4+ only
esm-infra/focal

not-affected

3.4+ only
jammy

not-affected

3.4+ only
noble

not-affected

3.4+ only
resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

jammy

DNE

noble

DNE

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

not-affected

uses system openssl
esm-apps-legacy/xenial

needs-triage

esm-apps/bionic

needs-triage

esm-apps/focal

not-affected

uses system openssl
esm-apps/jammy

not-affected

3.4+ only
esm-apps/noble

not-affected

uses system openssl
esm-apps/resolute

not-affected

uses system openssl
esm-infra-legacy/trusty

not-affected

uses system openssl
jammy

not-affected

3.4+ only
noble

not-affected

uses system openssl

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-infra-legacy/trusty

not-affected

3.4+ only
esm-infra-legacy/xenial

not-affected

3.4+ only
esm-infra/bionic

not-affected

3.4+ only
esm-infra/focal

not-affected

3.4+ only
fips-preview/jammy

not-affected

3.4+ only
fips-updates/bionic

not-affected

3.4+ only
fips-updates/focal

not-affected

3.4+ only
fips-updates/jammy

not-affected

3.4+ only
fips-updates/xenial

not-affected

3.4+ only

Показывать по

РелизСтатусПримечание
devel

DNE

fips-preview/jammy

needs-triage

fips-updates/jammy

needs-triage

fips-updates/noble

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

not-affected

3.4+ only
jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

EPSS

Процентиль: 40%
0.0048
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
redhat
10 дней назад

Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection. Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the Op...

CVSS3: 7.5
nvd
10 дней назад

Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection. Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the Op

msrc
8 дней назад

QUIC ACK-only Packet Retention Can Cause Memory Exhaustion

CVSS3: 7.5
debian
10 дней назад

Issue summary: When OpenSSL processes QUIC traffic from a peer that re ...

CVSS3: 7.5
github
10 дней назад

Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection. Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the ...

EPSS

Процентиль: 40%
0.0048
Низкий

7.5 High

CVSS3