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CVE-2019-12525

CRITICAL
9.8

Descricao

An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.

Detalhes CVE

Pontuacao CVSS v3.19.8
SeveridadeCRITICAL
Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vetor de ataqueNETWORK
ComplexidadeLOW
Privilegios necessariosNONE
Interacao do usuarioNONE
Publicado7/11/2019
Ultima modificacao11/21/2024
Fontenvd
Avistamentos honeypot0

Produtos afetados

canonical:ubuntu_linuxdebian:debian_linuxfedoraproject:fedoraopensuse:leapsquid-cache:squid

Fraquezas (CWE)

CWE-787

Referencias

http://www.squid-cache.org/Versions/v4/changesets/(af854a3a-2127-422b-91ae-364da2661108)
https://github.com/squid-cache/squid/commits/v4(af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Aug/42(af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4065-1/(af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4065-2/(af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2019/dsa-4507(af854a3a-2127-422b-91ae-364da2661108)

Correlacoes IOC

Sem correlacoes registradas

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