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osvGoogleOSV:RLSA-2020:4743
HistoryNov 03, 2020 - 12:32 p.m.

Moderate: squid:4 security, bug fix, and enhancement update

2020-11-0312:32:17
Google
osv.dev
7

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.931 High

EPSS

Percentile

99.0%

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 Rocky Linux 8.3 Release Notes linked from the References section.

References

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.931 High

EPSS

Percentile

99.0%