critical
9.8
CWE
119 787
Advisory Published
Updated

CVE-2019-12526: Buffer Overflow

First published: Tue Nov 26 2019(Updated: )

An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Squid-Cache Squid>=3.0<=3.5.28
Squid-Cache Squid>=4.0<=4.8
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.04
Canonical Ubuntu Linux=19.10
Fedoraproject Fedora=30
Fedoraproject Fedora=31
openSUSE Leap=15.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
ubuntu/squid<4.9-2ubuntu1
4.9-2ubuntu1
ubuntu/squid<4.4-1ubuntu2.3
4.4-1ubuntu2.3
ubuntu/squid<4.8-1ubuntu2.1
4.8-1ubuntu2.1
ubuntu/squid<4.9-2ubuntu1
4.9-2ubuntu1
ubuntu/squid<4.9-2ubuntu1
4.9-2ubuntu1
ubuntu/squid<4.9-1
4.9-1
ubuntu/squid3<3.5.27-1ubuntu1.4
3.5.27-1ubuntu1.4
ubuntu/squid3<3.5.12-1ubuntu7.9
3.5.12-1ubuntu7.9
debian/squid
4.6-1+deb10u7
4.6-1+deb10u10
4.13-10+deb11u2
4.13-10+deb11u3
5.7-2
5.7-2+deb12u1
6.6-1
6.9-1

Remedy

http://www.squid-cache.org/Versions/v4/changesets/squid-4-7aa0184a720fd216191474e079f4fe87de7c4f5a.patch

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2019-12526?

    CVE-2019-12526 is a vulnerability in Squid before version 4.9 that allows for a heap-based buffer overflow.

  • How severe is CVE-2019-12526?

    CVE-2019-12526 is classified as critical with a severity value of 9.8.

  • What software is affected by CVE-2019-12526?

    Squid versions up to 4.9-2ubuntu1 and 4.4-1ubuntu2.3 are affected by CVE-2019-12526.

  • How can I fix CVE-2019-12526?

    To fix CVE-2019-12526, update Squid to version 4.9-2ubuntu1 or 4.4-1ubuntu2.3.

  • Where can I find more information about CVE-2019-12526?

    More information about CVE-2019-12526 can be found at the following references: [CVE page](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12526), [Squid advisory](http://www.squid-cache.org/Advisories/SQUID-2019_7.txt), [Ubuntu security notice](https://ubuntu.com/security/notices/USN-4213-1).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203