[SECADV-20221101-1] X.509 Email Address Variable Length Buffer Overflow

Severity High

Affected Packages 7

Fixed Packages 1

CVEs 1

Buffer overflow

A buffer overrun can be triggered in X.509 certificate verification,
specifically in name constraint checking. Note that this occurs after
certificate chain signature verification and requires either a CA to
have signed a malicious certificate or for an application to continue
certificate verification despite failure to construct a path to a trusted
issuer. An attacker can craft a malicious email address in a certificate
to overflow an arbitrary number of bytes containing the `.' character
(decimal 46) on the stack. This buffer overflow could result in a crash
(causing a denial of service).

In a TLS client, this can be triggered by connecting to a malicious
server. In a TLS server, this can be triggered if the server requests
client authentication and a malicious client connects.

Package	Affected Version
pkg:openssl/openssl	= 3.0.0
pkg:openssl/openssl	= 3.0.1
pkg:openssl/openssl	= 3.0.2
pkg:openssl/openssl	= 3.0.3
pkg:openssl/openssl	= 3.0.4
pkg:openssl/openssl	= 3.0.5
pkg:openssl/openssl	= 3.0.6

Package	Fixed Version
pkg:openssl/openssl	= 3.0.7

ID

SECADV-20221101-1

Severity

high

Impact

Buffer overflow

URL

https://www.openssl.org/news/secadv/20221101.txt

Published

2022-11-01T00:00:00
(22 months ago)

Modified

2022-11-01T00:00:00
(22 months ago)

Rights

The OpenSSL Project

Other Advisories

Type	Package URL	Name / Product	Version
Fixed	pkg:openssl/openssl	openssl	= 3.0.7
Affected	pkg:openssl/openssl	openssl	= 3.0.0
Affected	pkg:openssl/openssl	openssl	= 3.0.1
Affected	pkg:openssl/openssl	openssl	= 3.0.2
Affected	pkg:openssl/openssl	openssl	= 3.0.3
Affected	pkg:openssl/openssl	openssl	= 3.0.4
Affected	pkg:openssl/openssl	openssl	= 3.0.5
Affected	pkg:openssl/openssl	openssl	= 3.0.6

# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	Exploits	PoC	Pubblication Date	Modification Date
# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	PoC	Pubblication Date	Modification Date