8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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%
Issue Overview:
An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users’ sessions or non-Squid processes. (CVE-2019-12528)
An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ “-” or an uncommon shell whitespace character prefix to the length field-value. (CVE-2020-15049)
A flaw was found in squid. Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15810)
A flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15811)
Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF. (CVE-2020-24606)
An issue was discovered in Squid before 4.10. Due to incorrect input validation, it can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters. (CVE-2020-8449)
An issue was discovered in Squid before 4.10. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy. (CVE-2020-8450)
Affected Packages:
squid
Issue Correction:
Run yum update squid to update your system.
New Packages:
i686:
squid-3.5.20-17.41.amzn1.i686
squid-migration-script-3.5.20-17.41.amzn1.i686
squid-debuginfo-3.5.20-17.41.amzn1.i686
src:
squid-3.5.20-17.41.amzn1.src
x86_64:
squid-3.5.20-17.41.amzn1.x86_64
squid-migration-script-3.5.20-17.41.amzn1.x86_64
squid-debuginfo-3.5.20-17.41.amzn1.x86_64
Red Hat: CVE-2019-12528, CVE-2020-15049, CVE-2020-15810, CVE-2020-15811, CVE-2020-24606, CVE-2020-8449, CVE-2020-8450
Mitre: CVE-2019-12528, CVE-2020-15049, CVE-2020-15810, CVE-2020-15811, CVE-2020-24606, CVE-2020-8449, CVE-2020-8450
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | squid | < 3.5.20-17.41.amzn1 | squid-3.5.20-17.41.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | squid-migration-script | < 3.5.20-17.41.amzn1 | squid-migration-script-3.5.20-17.41.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | squid-debuginfo | < 3.5.20-17.41.amzn1 | squid-debuginfo-3.5.20-17.41.amzn1.i686.rpm |
Amazon Linux | 1 | x86_64 | squid | < 3.5.20-17.41.amzn1 | squid-3.5.20-17.41.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | squid-migration-script | < 3.5.20-17.41.amzn1 | squid-migration-script-3.5.20-17.41.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | squid-debuginfo | < 3.5.20-17.41.amzn1 | squid-debuginfo-3.5.20-17.41.amzn1.x86_64.rpm |
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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%