Ubuntu Security Notice 4065-2 - USN-4065-1 fixed several vulnerabilities in Squid. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that Squid incorrectly handled Digest authentication. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Various other issues were also addressed.
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Ubuntu Security Notice USN-4065-2
July 22, 2019
squid3 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in Squid.
Software Description:
- squid3: Web proxy cache server
Details:
USN-4065-1 fixed several vulnerabilities in Squid. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Squid incorrectly handled Digest authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12525)
It was discovered that Squid incorrectly handled Basic authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12529)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
squid3 3.1.19-1ubuntu3.12.04.10
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4065-2
https://usn.ubuntu.com/4065-1
CVE-2019-12525, CVE-2019-12529