CVE-2017-12872
The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to…
Does this matter?
Lower severity and a low EPSS score (1.46%). Track it; it rarely justifies an emergency change on its own.
Description
The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against user input.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.46% probability · 73th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- simplesamlphp/simplesamlphp · debian/debian linux
- Source
- cve@mitre.org
EPSS 1.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://lists.debian.org/debian-lts-announce/2017/12/msg00007.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/06/msg00017.htmlMailing List, Third Party Advisory
- https://simplesamlphp.org/security/201703-01Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00007.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/06/msg00017.htmlMailing List, Third Party Advisory
- https://simplesamlphp.org/security/201703-01Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.