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Debian DSA-4633-1 : curl - security update

critical Nessus Plugin ID 133968

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Synopsis

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

Description

Multiple vulnerabilities were discovered in cURL, an URL transfer library.

 - CVE-2019-5436 A heap buffer overflow in the TFTP receiving code was discovered, which could allow DoS or arbitrary code execution. This only affects the oldstable distribution (stretch).

 - CVE-2019-5481 Thomas Vegas discovered a double-free in the FTP-KRB code, triggered by a malicious server sending a very large data block.

 - CVE-2019-5482 Thomas Vegas discovered a heap buffer overflow that could be triggered when a small non-default TFTP blocksize is used.

Solution

Upgrade the curl packages.

For the oldstable distribution (stretch), these problems have been fixed in version 7.52.1-5+deb9u10.

For the stable distribution (buster), these problems have been fixed in version 7.64.0-4+deb10u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=929351

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=940009

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=940010

https://security-tracker.debian.org/tracker/CVE-2019-5436

https://security-tracker.debian.org/tracker/CVE-2019-5481

https://security-tracker.debian.org/tracker/CVE-2019-5482

https://security-tracker.debian.org/tracker/source-package/curl

https://packages.debian.org/source/stretch/curl

https://packages.debian.org/source/buster/curl

https://www.debian.org/security/2020/dsa-4633

Plugin Details

Severity: Critical

ID: 133968

File Name: debian_DSA-4633.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2/25/2020

Updated: 3/26/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-5482

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:curl

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: 2/22/2020

Vulnerability Publication Date: 5/28/2019

Reference Information

CVE: CVE-2019-5436, CVE-2019-5481, CVE-2019-5482

DSA: 4633