CVE-2015-3455
Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, do not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, do not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate.
- CVSS 2.0
- 2.6 LOWAV:N/AC:H/Au:N/C:N/I:P/A:N
- EPSS
- 11.40% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- oracle/linux · oracle/solaris · squid-cache/squid · fedoraproject/fedora
- Source
- cve@mitre.org
EPSS 11.4% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://advisories.mageia.org/MGASA-2015-0191.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183598.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00016.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
- http://rhn.redhat.com/errata/RHSA-2015-2378.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:230Broken Link
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlThird Party Advisory
- http://www.securityfocus.com/bid/74438
- http://www.securitytracker.com/id/1032221Third Party Advisory, VDB Entry
- http://www.squid-cache.org/Advisories/SQUID-2015_1.txtVendor Advisory
- http://advisories.mageia.org/MGASA-2015-0191.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183598.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00016.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
- http://rhn.redhat.com/errata/RHSA-2015-2378.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:230Broken Link
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlThird Party Advisory
- http://www.securityfocus.com/bid/74438
- http://www.securitytracker.com/id/1032221Third Party Advisory, VDB Entry
- http://www.squid-cache.org/Advisories/SQUID-2015_1.txtVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.