critical
9.8
CWE
120 119
Advisory Published
CVE Published
Updated

CVE-2020-26154: Buffer Overflow

First published: Thu Aug 13 2020(Updated: )

libproxy is vulnerable to a buffer overflow, caused by improper bounds checking. By persuading a victim to open a specially crafted PAC file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
debian/libproxy
0.4.15-5+deb10u1
0.4.17-1
0.4.18-1.2
IBM QRadar Security Information and Event Manager<=7.5 - 7.5.0 UP9 IF03
IBM Security QRadar Incident Forensics<=7.5 - 7.5.0 UP9 IF03
libproxy<=0.4.15
Fedora=32
Fedora=33
Debian=9.0
Debian=10.0
SUSE Linux=15.1
SUSE Linux=15.2

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2020-26154?

    CVE-2020-26154 has a medium severity rating due to the buffer overflow vulnerability that could allow remote code execution.

  • How do I fix CVE-2020-26154?

    To fix CVE-2020-26154, update libproxy to version 0.4.15-5+deb10u1 or any later version provided by your Linux distribution.

  • Which systems are affected by CVE-2020-26154?

    CVE-2020-26154 affects systems using libproxy versions prior to 0.4.15, including Debian, Fedora, and openSUSE.

  • Can CVE-2020-26154 lead to remote code execution?

    Yes, CVE-2020-26154 can lead to remote code execution if a victim opens a specially crafted PAC file.

  • What is the context of the vulnerability CVE-2020-26154?

    CVE-2020-26154 results from improper bounds checking in the url.cpp file of libproxy, allowing exploitation through manipulated input.

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