kritisch
CVE-2020-11945
squid: improper access restriction upon Digest Authentication nonce replay could lead to remote code execution
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.
Einstufung nach Quelle
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut Red Hat (hoch), AlmaLinux (hoch), Amazon (hoch), Oracle (hoch), Rocky Linux (hoch), Ubuntu (mittel).
Beschreibung
An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| alma 8 | squid:4::libecap, squid:4::libecap-devel | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
| alpine 3.10 | squid | 4.11-r0 |
| alpine 3.11 | squid | 4.11-r0 |
| alpine 3.9 | squid | 4.11-r0 |
| amazon linux 1 | squid, squid-debuginfo, squid-migration-script | 7:3.5.20-15.39.amzn1 |
| amazon linux 2 | squid, squid-debuginfo, squid-migration-script und 1 weitere | 7:3.5.20-15.amzn2.1 |
| debian 10 | squid | 4.6-1+deb10u2 |
| debian 11 | squid | 4.11-1 |
| debian 12 | squid | 4.11-1 |
| debian 13 | squid | 4.11-1 |
| debian 14 | squid | 4.11-1 |
| debian 9 | squid3 | 3.5.23-5+deb9u2 |
Alle 38 Einträge aus 26 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| alma 8 | squid:4::libecap | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
| alma 8 | squid:4::libecap-devel | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
| alpine 3.10 | squid | 4.11-r0 |
| alpine 3.11 | squid | 4.11-r0 |
| alpine 3.9 | squid | 4.11-r0 |
| amazon linux 1 | squid | 7:3.5.20-15.39.amzn1 |
| amazon linux 1 | squid-debuginfo | 7:3.5.20-15.39.amzn1 |
| amazon linux 1 | squid-migration-script | 7:3.5.20-15.39.amzn1 |
| amazon linux 2 | squid | 7:3.5.20-15.amzn2.1 |
| amazon linux 2 | squid-debuginfo | 7:3.5.20-15.amzn2.1 |
| amazon linux 2 | squid-migration-script | 7:3.5.20-15.amzn2.1 |
| amazon linux 2 | squid-sysvinit | 7:3.5.20-15.amzn2.1 |
| debian 10 | squid | 4.6-1+deb10u2 |
| debian 11 | squid | 4.11-1 |
| debian 12 | squid | 4.11-1 |
| debian 13 | squid | 4.11-1 |
| debian 14 | squid | 4.11-1 |
| debian 9 | squid3 | 3.5.23-5+deb9u2 |
| echo | squid | 4.11-1 |
| Oracle Linux 7 | squid | 7:3.5.20-15.el7_8.1 |
| Oracle Linux 7 | squid-migration-script | 7:3.5.20-15.el7_8.1 |
| Oracle Linux 7 | squid-sysvinit | 7:3.5.20-15.el7_8.1 |
| Oracle Linux 8 | libecap | 1.0.1-2.module+el8.1.0+5405+03b963f4 |
| Oracle Linux 8 | libecap-devel | 1.0.1-2.module+el8.1.0+5405+03b963f4 |
| Oracle Linux 8 | squid | 7:4.4-8.module+el8.2.0+7611+d512f060.1 |
| Red Hat | squid | kein Fix angegeben |
| Red Hat | squid34 | kein Fix angegeben |
| rocky 8 | squid:4::libecap | 1.0.1-2.module+el8.4.0+404+316a0dc5 |
| rocky 8 | squid:4::libecap-devel | 1.0.1-2.module+el8.4.0+404+316a0dc5 |
| ubuntu 16.04 | squid3 | 3.5.12-1ubuntu7.11 |
| ubuntu 16.04-ESM | squid3 | 3.5.12-1ubuntu7.11 |
| ubuntu 18.04 | squid3 | 3.5.27-1ubuntu1.6 |
| ubuntu 18.04-ESM | squid3 | 3.5.27-1ubuntu1.6 |
| ubuntu 19.10 | squid | 4.8-1ubuntu2.3 |
| ubuntu 20.04 | squid | 4.10-1ubuntu1.1 |
| ubuntu 20.04-ESM | squid | 4.10-1ubuntu1.1 |
| ubuntu 20.10 | squid | 4.10-1ubuntu2 |
| ubuntu 21.04 | squid | 4.10-1ubuntu2 |
Referenzen
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html
- http://master.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch
- http://www.openwall.com/lists/oss-security/2020/04/23/2
- http://www.squid-cache.org/Advisories/SQUID-2020_4.txt
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch
- https://access.redhat.com/security/cve/CVE-2020-11945
- https://bugzilla.redhat.com/show_bug.cgi?id=1730535
- https://bugzilla.redhat.com/show_bug.cgi?id=1827552
Alle 30 Referenzen
- https://bugzilla.redhat.com/show_bug.cgi?id=1827563
- https://bugzilla.suse.com/show_bug.cgi?id=1170313
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12519
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12525
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11945
- https://errata.almalinux.org/8/ALSA-2020-2041.html
- https://errata.rockylinux.org/RLSA-2020:2041
- https://github.com/squid-cache/squid/commit/eeebf0f37a72a2de08348e85ae34b02c34e9a811
- https://github.com/squid-cache/squid/pull/585
- https://linux.oracle.com/cve/CVE-2020-11945.html
- https://linux.oracle.com/errata/ELSA-2020-2041.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4FWQRYZJPHAZBLXJ56FPCHJN5X2FP3VA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H4MWXEZAJSOGRJSS2JCJK4WBSND4IV46/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RV2VZWFJNO3B56IVN56HHKJASG5DYUIX/
- https://nvd.nist.gov/vuln/detail/CVE-2020-11945
- https://security.gentoo.org/glsa/202005-05
- https://security.netapp.com/advisory/ntap-20210304-0004/
- https://ubuntu.com/security/notices/USN-4356-1
- https://usn.ubuntu.com/4356-1/
- https://www.cve.org/CVERecord?id=CVE-2020-11945
- https://www.debian.org/security/2020/dsa-4682