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CVE-2021-3580

ΠžΠΏΡƒΠ±Π»ΠΈΠΊΠΎΠ²Π°Π½ΠΎ: 07 июн. 2021
Π˜ΡΡ‚ΠΎΡ‡Π½ΠΈΠΊ: redhat
CVSS3: 7.5
EPSS Низкий

ОписаниС

A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.

A flaw was found in nettle in the way its RSA decryption functions handle specially crafted ciphertext. This flaw allows an attacker to provide a manipulated ciphertext, leading to an application crash and a denial of service.

ΠœΠ΅Ρ€Ρ‹ ΠΏΠΎ ΡΠΌΡΠ³Ρ‡Π΅Π½ΠΈΡŽ послСдствий

As per upstream: For applications that want to support older versions of nettle, the bug can be worked around by adding a check that the RSA ciphertext is in the range 0 < ciphertext < n, before attempting to decrypt it.

Π—Π°Ρ‚Ρ€ΠΎΠ½ΡƒΡ‚Ρ‹Π΅ ΠΏΠ°ΠΊΠ΅Ρ‚Ρ‹

ΠŸΠ»Π°Ρ‚Ρ„ΠΎΡ€ΠΌΠ°ΠŸΠ°ΠΊΠ΅Ρ‚Π‘ΠΎΡΡ‚ΠΎΡΠ½ΠΈΠ΅Π Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°Ρ†ΠΈΡΠ Π΅Π»ΠΈΠ·
Red Hat Enterprise Linux 7nettleWill not fix
Red Hat Enterprise Linux 8mingw-nettleNot affected
Red Hat Enterprise Linux 9nettleNot affected
Red Hat Enterprise Linux 8gnutlsFixedRHSA-2021:445109.11.2021
Red Hat Enterprise Linux 8nettleFixedRHSA-2021:445109.11.2021
Red Hat Enterprise Linux 8gnutlsFixedRHSA-2021:445109.11.2021
Red Hat Enterprise Linux 8nettleFixedRHSA-2021:445109.11.2021

ΠŸΠΎΠΊΠ°Π·Ρ‹Π²Π°Ρ‚ΡŒ ΠΏΠΎ

Бсылки Π½Π° источники

Π”ΠΎΠΏΠΎΠ»Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ информация

Бтатус:

Moderate
Π”Π΅Ρ„Π΅ΠΊΡ‚:
CWE-20
https://bugzilla.redhat.com/show_bug.cgi?id=1967983nettle: Remote crash in RSA decryption via manipulated ciphertext

EPSS

ΠŸΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΈΠ»ΡŒ: 28%
0.00104
Низкий

7.5 High

CVSS3

БвязанныС уязвимости

CVSS3: 7.5
ubuntu
большС 4 Π»Π΅Ρ‚ Π½Π°Π·Π°Π΄

A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.

CVSS3: 7.5
nvd
большС 4 Π»Π΅Ρ‚ Π½Π°Π·Π°Π΄

A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.

CVSS3: 7.5
msrc
большС 4 Π»Π΅Ρ‚ Π½Π°Π·Π°Π΄

A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.

CVSS3: 7.5
debian
большС 4 Π»Π΅Ρ‚ Π½Π°Π·Π°Π΄

A flaw was found in the way nettle's RSA decryption functions handled ...

suse-cvrf
большС 4 Π»Π΅Ρ‚ Π½Π°Π·Π°Π΄

Security update for libnettle

EPSS

ΠŸΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΈΠ»ΡŒ: 28%
0.00104
Низкий

7.5 High

CVSS3

Π£ΡΠ·Π²ΠΈΠΌΠΎΡΡ‚ΡŒ CVE-2021-3580