CVE-2018-6519
published 2018-02-02CVE-2018-6519: The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for…
PriorityP433high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
1.70%
74.6th percentile
The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| avahi | avahi | >= 0 < 0.6.31-4ubuntu1.3 | 0.6.31-4ubuntu1.3 |
| avahi | avahi | >= 0 < 0.6.32~rc+dfsg-1ubuntu2.3 | 0.6.32~rc+dfsg-1ubuntu2.3 |
| avahi | avahi | >= 0 < 0.7-3.1ubuntu1.2 | 0.7-3.1ubuntu1.2 |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | simplesamlphp | < simplesamlphp 1.15.2-1 (bookworm) | simplesamlphp 1.15.2-1 (bookworm) |
| simplesamlphp | saml2 | >= 0 < 1.10.4 | 1.10.4 |
| simplesamlphp | saml2 | >= 1.0.0 < 1.10.4 | 1.10.4 |
| simplesamlphp | saml2 | >= 2.0 < 2.3.5 | 2.3.5 |
| simplesamlphp | saml2 | >= 2.0.0 < 2.3.5 | 2.3.5 |
| simplesamlphp | saml2 | >= 3.0 < 3.1.1 | 3.1.1 |
| simplesamlphp | saml2 | >= 3.0.0 < 3.1.1 | 3.1.1 |
| simplesamlphp | simplesamlphp | >= 0 < 1.15.2-1 | 1.15.2-1 |
| simplesamlphp | simplesamlphp | >= 0 < 1.15.2-1 | 1.15.2-1 |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv9.1CRITICAL
vendor_redhat9.1CRITICAL
vendor_debian7.5HIGH
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OSV
SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability
osv·2022-05-14
CVE-2018-6519 [HIGH] SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability
SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability
The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.
GHSA
SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability
ghsa·2022-05-14
CVE-2018-6519 [HIGH] CWE-74 SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability
SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability
The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.
OSV
avahi vulnerabilities
osv·2019-01-31·CVSS 9.1
CVE-2017-6519 avahi vulnerabilities
avahi vulnerabilities
Chad Seaman discovered that Avahi incorrectly handled certain messages.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2017-6519, CVE-2018-1000845)
OSV
CVE-2018-6519: The SAML2 library before 1
osv·2018-02-02·CVSS 7.5
CVE-2018-6519 [HIGH] CVE-2018-6519: The SAML2 library before 1
The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.
Red Hat
avahi: DNS amplification and reflection to spoofed addresses
vendor_redhat·2018-11-08·CVSS 9.1
CVE-2018-1000845 [CRITICAL] CWE-406 avahi: DNS amplification and reflection to spoofed addresses
avahi: DNS amplification and reflection to spoofed addresses
No description is available for this CVE.
Statement: This flaw was found to be a duplicate of CVE-2017-6519. Please see https://access.redhat.com/security/cve/CVE-2017-6519 for information about affected products and security errata.
Mitigation: Ensure UDP port 5353 is blocked in the firewall. Moreover, configure correctly the rate limiting options based on your needs (see ratelimit-interval-usec and ratelimit-burst options in /etc/avahi/avahi-daemon.conf).
Package: avahi (Red Hat Enterprise Linux 5) - Not affected
Package: avahi (Red Hat Enterprise Linux 6) - Not affected
Package: avahi (Red Hat Enterprise Linux 7) - Not affected
Package: avahi (Red Hat Enterprise Linux 8) - Not affected
Package: redhat-virtualization-ho
Debian
CVE-2018-6519: simplesamlphp - The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in Simpl...
vendor_debian·2018·CVSS 7.5
CVE-2018-6519 [HIGH] CVE-2018-6519: simplesamlphp - The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in Simpl...
The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.
Scope: local
bookworm: resolved (fixed in 1.15.2-1)
bullseye: resolved (fixed in 1.15.2-1)
sid: resolved (fixed in 1.15.2-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library [epel-all]
bugzilla·2018-02-05·CVSS 7.5
CVE-2018-6519 [HIGH] CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library [epel-all]
CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affec
Bugzilla
CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library
bugzilla·2018-02-05·CVSS 7.5
CVE-2018-6519 [HIGH] CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library
CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library
The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp. When parsing a timestamp contained inside a SAML document, the SAML2 library uses a regular expression to validate its format and parse its components. The given regular expression sets no limits for the fraction of seconds part, such that an arbitrary amount of digits can be processed. This opens up the possibility to perform a denial of service attack by sending a large number of digits as the fraction of a second in a timestamp, making the processing script choke while evaluating the regular expressio
Bugzilla
CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library [fedora-all]
bugzilla·2018-02-05·CVSS 7.5
CVE-2018-6519 [HIGH] CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library [fedora-all]
CVE-2018-6519 php-simplesamlphp-saml2: Denial of Service in xs:DateTime timestamp in SAML2 library [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue a
2018-02-02
Published