CVE-2017-12872: debian debian_linux
Vulnerability summary
CVE-2017-12872 is a medium (CVSS 5.9) vulnerability in debian debian_linux. EPSS estimates a 1.46% chance of exploitation in the next 30 days, higher than 73.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 01-09-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
1.46%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.46% on 22-09-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- simplesamlphp< 1.14.15-1
- debian_linuxEOL7.0 | 8.0
Simplesamlphp1 product
- simplesamlphp≤ 1.14.11
Ubuntu1 product
- simplesamlphpAll versions (No fix recorded)
3 vendors · 4 products
References
6 links- lists.debian.org/debian-lts-announce/2017/12/msg00007.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2018/06/msg00017.htmlMailing ListX Refsource MLISTThird Party Advisory