Out-of-bounds Read in Mit Kerberos 5
CVE-2015-8629
The xdr_nullstring function in lib/kadm5/kadm_rpc_xdr.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 does not verify whether '\0' characters exist as expected, which allows remote authenticated users to obtain sensitive information or cause a denial of service (out-of-bounds read) via a crafted string.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.037 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Mit Kerberos 5
- Oracle Linux — versions 6, 7
- Oracle Solaris — versions 10, 11.3
- Debian Linux — versions 7.0, 8.0
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.2
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Eus — versions 6.7, 7.2, 7.3
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.2, 7.3, 7.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2016/dsa-3466 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/82801 (VDB Entry, Third Party Advisory, vdb-entry)
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html (Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2016-02/msg00059.html (vendor-advisory, Mailing List, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-0493.html (vendor-advisory, Third Party Advisory)
- krbdev.mit.edu/rt/Ticket/Display.html (Vendor Advisory)
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (Third Party Advisory)
- www.securitytracker.com/id/1034914 (VDB Entry, Third Party Advisory, vdb-entry)
- rhn.redhat.com/errata/RHSA-2016-0532.html (vendor-advisory, Third Party Advisory)
- github.com/krb5/krb5/commit/df17a1224a3406f57477bcd372c61e04c0e5a5bb (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-8629?
- CVE-2015-8629 is a medium-severity vulnerability in Mit Kerberos 5, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2016-02-13.
- How severe is CVE-2015-8629?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2015-8629 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.