Summary
Jeriko One discovered that Squid incorrectly handled certain Edge Side
Includes (ESI) responses. A malicious remote server could cause Squid to
crash, possibly poison the cache, or possibly execute arbitrary code.
(CVE-2019-12519, CVE-2019-12521)
It was discovered that Squid incorrectly handled the hostname parameter to
cachemgr.cgi when certain browsers are used. A remote attacker could
possibly use this issue to inject HTML or invalid characters in the
hostname parameter. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04
LTS, and Ubuntu 19.10. (CVE-2019-18860)
Clément Berthaux and Florian Guilbert discovered that Squid incorrectly
handled Digest Authentication nonce values. A remote attacker could
use this issue to replay nonce values, or possibly execute arbitrary code.
(CVE-2020-11945)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | squid3 | 3.5.12-1ubuntu7.11 |
| Ubuntu · 18.04 LTS 18.04:LTS | squid3 | 3.5.27-1ubuntu1.6 |
| Ubuntu · 20.04 LTS 20.04:LTS | squid | 4.10-1ubuntu1.1 |
Vulnerabilities 4
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Unscored —
An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpres…
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Unscored —
An issue was discovered in Squid through 4.7. When Squid is parsing ESI, it keeps the ESI elements in ESIContext. ESICo…
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Unscored —
Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.…
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Unscored —CVE-2020-11945 EPSS 27%
An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to ga…