GLSA-200609-18 : Opera: RSA signature forgery

medium Nessus Plugin ID 22469

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200609-18 (Opera: RSA signature forgery)

Opera makes use of OpenSSL, which fails to correctly verify PKCS #1 v1.5 RSA signatures signed by a key with exponent 3. Some CAs in Opera's list of trusted signers are using root certificates with exponent 3.
Impact :

An attacker could forge certificates which will appear valid and signed by a trusted CA.
Workaround :

There is no known workaround at this time.

Solution

All Opera users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=www-client/opera-9.02'

Plugin Details

Severity: Medium

ID: 22469

File Name: gentoo_GLSA-200609-18.nasl

Version: 1.22

Type: local

Family: Gentoo Local Security Checks

Published: 9/29/2006

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:opera, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2006

Reference Information

BID: 19849

GLSA: 200609-18

Detections

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