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Debian DSA-1869-1 : curl - insufficient input validation

high Nessus Plugin ID 44734

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Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that curl, a client and library to get files from servers using HTTP, HTTPS or FTP, is vulnerable to the 'Null Prefix Attacks Against SSL/TLS Certificates' recently published at the Blackhat conference. This allows an attacker to perform undetected man-in-the-middle attacks via a crafted ITU-T X.509 certificate with an injected null byte in the Common Name field.

Solution

Upgrade the curl packages.

For the oldstable distribution (etch), this problem has been fixed in version 7.15.5-1etch3.

For the stable distribution (lenny), this problem has been fixed in version 7.18.2-8lenny3.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=541991

https://www.debian.org/security/2009/dsa-1869

Plugin Details

Severity: High

ID: 44734

File Name: debian_DSA-1869.nasl

Version: 1.9

Type: local

Agent: unix

Published: 2/24/2010

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:curl, cpe:/o:debian:debian_linux:4.0, cpe:/o:debian:debian_linux:5.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/19/2009

Reference Information

CVE: CVE-2009-2417

BID: 36032

CWE: 310

DSA: 1869