CVE-2020-11945

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Summary

CVECVE-2020-11945
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-04-23 15:15:00 UTC
Updated2023-11-07 03:15:00 UTC
DescriptionAn 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).

Risk And Classification

Problem Types: CWE-190

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.10 All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 31 All All All
Operating System Fedoraproject Fedora 32 All All All
Operating System Opensuse Leap 15.1 All All All
Application Squid-cache Squid All All All All
Application Squid-cache Squid All All All All
Application Squid-cache Squid All All All All
Application Squid-cache Squid All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 32 Update: squid-4.11-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Fix auth digest refcount integer overflow by desbma-s1n · Pull Request #585 · squid-cache/squid · GitHub MISC github.com Patch, Third Party Advisory
[SECURITY] Fedora 30 Update: squid-4.11-1.fc30 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2278-1] squid3 security update MLIST lists.debian.org Mailing List, Third Party Advisory
oss-security - [ADVISORY] SQUID-2020:4 Multiple issues in HTTP Digest authentication CONFIRM www.openwall.com Mailing List, Third Party Advisory
Bug 1170313 – VUL-0: CVE-2020-11945: squid: integer overflow bug allows credential replay and remote code execution attacks against HTTP Digest Authentication tokens CONFIRM bugzilla.suse.com Issue Tracking, Third Party Advisory
[SECURITY] Fedora 32 Update: squid-4.11-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
Fix auth digest refcount integer overflow (#585) · squid-cache/squid@eeebf0f · GitHub MISC github.com Patch, Third Party Advisory
[security-announce] openSUSE-SU-2020:0623-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
[SECURITY] Fedora 30 Update: squid-4.11-1.fc30 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Squid: Multiple vulnerabilities (GLSA 202005-05) — Gentoo security GENTOO security.gentoo.org Third Party Advisory
CVE-2020-11945 Squid Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
www.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b0... MISC www.squid-cache.org Patch, Vendor Advisory
Debian -- Security Information -- DSA-4682-1 squid DEBIAN www.debian.org Third Party Advisory
[SECURITY] Fedora 31 Update: squid-4.11-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] Fedora 31 Update: squid-4.11-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
master.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b0... MISC master.squid-cache.org Vendor Advisory
USN-4356-1: Squid vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 296074 Oracle Solaris 11.4 Support Repository Update (SRU) 22.69.4 Missing (CPUAPR2020)
  • 356292 Amazon Linux Security Advisory for squid : ALASSQUID4-2023-008
  • 377033 Alibaba Cloud Linux Security Update for squid (ALINUX2-SA-2020:0092)
  • 377360 Alibaba Cloud Linux Security Update for squid:4 (ALINUX3-SA-2022:0124)
  • 940334 AlmaLinux Security Update for squid:4 (ALSA-2020:2041)
  • 960236 Rocky Linux Security Update for squid:4 (RLSA-2020:2041)
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