CVE-2020-8517
At a glance
- Source
- NVD
- EPSS
- EPSS 6.85 % · percentile 94 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.
Weaknesses (CWE)
References
- http://www.squid-cache.org/Advisories/SQUID-2020_3.txt
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-6982f1187a26557e582172965e266f544ea562a5.patch
- https://usn.ubuntu.com/4289-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.html
- https://security.gentoo.org/glsa/202003-34
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html
- https://security.netapp.com/advisory/ntap-20210304-0002/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-29383
- GCVE · GCVE-0-2020-8517
CERT-FR advisories
- CERTFR-2020-AVI-070 — Multiples vulnérabilités dans Squid · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*< 4.10cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |