CVE-2019-18679

libecap: Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. The...

CVE-2019-18679 is fixed in 8 products on 1 platform, first by squid 3.5.27-1ubuntu1.4, released November 26, 2019. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.4098
98th percentile

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. The following packages have been upgraded to a later upstream version: squid (4.11). (BZ#1829467) Security Fix(es): * squid: Improper input validation in request allows for proxy manipulation (CVE-2019-12520) * squid: Off-by-one error in addStackElement allows for heap buffer overflow and crash (CVE-2019-12521) * squid: Improper input validation in URI processor (CVE-2019-12523) * squid: Improper access restriction in url_regex may lead to security bypass (CVE-2019-12524) * squid: Heap overflow issue in URN processing (CVE-2019-12526) * squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528) * squid: Out of bounds read in Proxy-Authorization header causes DoS (CVE-2019-12529) * squid: Denial of service in cachemgr.cgi (CVE-2019-12854) * squid: Buffer overflow in URI processor (CVE-2019-18676) * squid: Cross-Site Request Forgery issue in HTTP Request processing (CVE-2019-18677) * squid: HTTP Request Splitting issue in HTTP message processing (CVE-2019-18678) * squid: Information Disclosure issue in HTTP Digest Authentication (CVE-2019-18679) * squid: Mishandled HTML in the host parameter to cachemgr.cgi results in insecure behaviour (CVE-2019-18860) * squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449) * squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450) * squid: DoS in TLS handshake (CVE-2020-14058) * squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049) * squid: Improper input validation could result in a DoS (CVE-2020-24606) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
libecap · RHEL 8 0:1.0.1-2.module+el8.1.0+4044+36416a77 RHSA-2020:4743 Nov 4, 2020
libecap · ol 8 0:1.0.1-2.module+el8.3.0+7819+eb7d4ef6 ELSA-2020-4743 Nov 10, 2020
libecap-devel · RHEL 8 0:1.0.1-2.module+el8.1.0+4044+36416a77 RHSA-2020:4743 Nov 4, 2020
libecap-devel · ol 8 0:1.0.1-2.module+el8.3.0+7819+eb7d4ef6 ELSA-2020-4743 Nov 10, 2020
squid · RHEL 8 7:4.11-3.module+el8.3.0+7851+7808b5f9 RHSA-2020:4743 Nov 4, 2020
squid · Ubuntu 18.04.6 LTS (bionic) 3.5.27-1ubuntu1.4 squid 3.5.27-1ubuntu1.4 Nov 26, 2019
squid · Ubuntu 20.04 LTS (focal) 4.9-2ubuntu1 squid 4.9-2ubuntu1 Nov 26, 2019
squid · ol 8 7:4.11-3.module+el8.3.0+7819+eb7d4ef6 ELSA-2020-4743 Nov 10, 2020
squid-cgi · Ubuntu 18.04.6 LTS (bionic) 3.5.27-1ubuntu1.4 squid-cgi 3.5.27-1ubuntu1.4 Nov 26, 2019
squid-cgi · Ubuntu 20.04 LTS (focal) 4.9-2ubuntu1 squid-cgi 4.9-2ubuntu1 Nov 26, 2019
squid-common · Ubuntu 18.04.6 LTS (bionic) 3.5.27-1ubuntu1.4 squid-common 3.5.27-1ubuntu1.4 Nov 26, 2019
squid-common · Ubuntu 20.04 LTS (focal) 4.9-2ubuntu1 squid-common 4.9-2ubuntu1 Nov 26, 2019
squid-purge · Ubuntu 18.04.6 LTS (bionic) 3.5.27-1ubuntu1.4 squid-purge 3.5.27-1ubuntu1.4 Nov 26, 2019
squid-purge · Ubuntu 20.04 LTS (focal) 4.9-2ubuntu1 squid-purge 4.9-2ubuntu1 Nov 26, 2019
squid3 · Ubuntu 18.04.6 LTS (bionic) 3.5.27-1ubuntu1.4 squid3 3.5.27-1ubuntu1.4 Nov 26, 2019
squid3 · Ubuntu 20.04 LTS (focal) 4.9-2ubuntu1 squid3 4.9-2ubuntu1 Nov 26, 2019
squidclient · Ubuntu 18.04.6 LTS (bionic) 3.5.27-1ubuntu1.4 squidclient 3.5.27-1ubuntu1.4 Nov 26, 2019
squidclient · Ubuntu 20.04 LTS (focal) 4.9-2ubuntu1 squidclient 4.9-2ubuntu1 Nov 26, 2019

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