CVE-2017-11368: fedoraproject fedora Reachable Assertion
CVSS: 6.5v3.0MediumModified
AliasesMGASA-2017-0256UBUNTU-CVE-2017-11368DEBIAN-CVE-2017-11368DLA-1058-1
Published 09-08-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-11368 is a medium (CVSS 6.5) Reachable Assertion vulnerability in fedoraproject fedora. EPSS estimates a 2.40% chance of exploitation in the next 30 days, higher than 83.7% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
2.40%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 09-08-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.40%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.40% on 18-09-2026
18-09-202618-10-2026
EPSS score2.40%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mageia2 products
- krb5< 1.12.5-1.2.mga5
- krb5< 1.15.1-2.1.mga6
Mit2 products
- kerberos5-1.13.7
- kerberos_51.7 | 1.7.1 | 1.8 | 1.8.1 | 1.8.2 | 1.8.3 | 1.8.4 | 1.8.5 | 1.8.6 | 1.9 | 1.9.1 | 1.9.2 | 1.9.3 | 1.9.4 | 1.10 | 1.10.1 | 1.10.2 | 1.10.3 | 1.10.4 | 1.1.1 | 1.11.1 | 1.11.2 | 1.11.3 | 1.11.4 | 1.11.5 | 1.12 | 1.12.1 | 1.12.2 | 1.12.3 | 1.13 | 1.13.1 | 1.13.2 | 1.13.3 | 1.13.5 | 1.13.6 | 1.14 | 1.14:alpha1 | 1.14:beta1 | 1.14:beta2 | 1.14.1 | 1.14.2 | 1.14.3 | 1.14.4 | 1.14.5 | 1.15 | 1.15.1 | 1.15.1:beta1 | 1.15.1:beta2
Debian1 product
- krb5< 1.15.1-2 | < 1.10.1+dfsg-5+deb7u8
Fedoraproject1 product
- fedoraEOL25 | 26
Ubuntu1 product
- krb5< 1.12+dfsg-2ubuntu5.4 | < 1.13.2+dfsg-5ubuntu2.1
5 vendors · 7 products
References
12 links- github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970X Refsource CONFIRMPatchThird Party Advisory
