CVE-2013-4124
MediumPublic exploitInteger overflow in the read_nttrans_ea_list function in nttrans.c in smbd in Samba 3.x before 3.5.22, 3.6.x before 3.6.17, and 4.x before 4.0.8 allows remote attackers to cause a denial of service (memory consumption) via a malformed packet.
Published Aug 6, 2013 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2013-4124
Key Facts
Patch immediately- CVE-2013-4124 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Samba, Ubuntu Linux (Canonical), Fedora (Fedoraproject) and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 69% probability of exploitation in the next 30 days.
- Fixed versions are available, including ctdb 4.5.0-1.1, ctdb-pcp-pmda 4.5.0-1.1, ctdb-tests 4.5.0-1.1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS (30-day exploit likelihood)
69%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2013-4124 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Integer overflow in the read_nttrans_ea_list function in nttrans.c in smbd in Samba 3.x before 3.5.22, 3.6.x before 3.6.17, and 4.x before 4.0.8 allows remote attackers to cause a denial of service (memory consumption) via a malformed packet.
Affected Products
398 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SambaSamba | 3.0.0, 3.0.1, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.14-a | 2:3.6.17-1 |
| Ubuntu LinuxCanonical | 10.04, 12.04, 12.10, 13.04 | n/a |
| FedoraFedoraproject | 18, 19 | n/a |
| OpensuseOpensuse | 12.2, 12.3 | n/a |
| Enterprise LinuxRedhat | 5 | n/a |
Patched Releases
ctdb
4.5.0-1.1
ctdb-pcp-pmda
4.5.0-1.1
ctdb-tests
4.5.0-1.1
ldapsmb
1.34b-12.33.39.1
libdcerpc-binding0
4.5.0-1.1
libdcerpc-binding0-32bit
4.5.0-1.1
libdcerpc-devel
4.5.0-1.1
libdcerpc-samr-devel
4.5.0-1.1
libdcerpc-samr0
4.5.0-1.1
libdcerpc-samr0-32bit
4.5.0-1.1
libdcerpc0
4.5.0-1.1
libdcerpc0-32bit
4.5.0-1.1
libldb1
3.6.3-0.33.39.1
libndr-devel
4.5.0-1.1
libndr-krb5pac-devel
4.5.0-1.1
libndr-krb5pac0
4.5.0-1.1
libndr-krb5pac0-32bit
4.5.0-1.1
libndr-nbt-devel
4.5.0-1.1
libndr-nbt0
4.5.0-1.1
libndr-nbt0-32bit
4.5.0-1.1
libndr-standard-devel
4.5.0-1.1
libndr-standard0
4.5.0-1.1
libndr-standard0-32bit
4.5.0-1.1
libndr0
4.5.0-1.1
libndr0-32bit
4.5.0-1.1
Timeline
Publicly disclosed
Aug 6, 2013
Last updated
Aug 4, 2026
Weakness Type
- CWE-189
- CWE-190 Integer Overflow or Wraparound
References
- advisoryFEDORA-2013-14312
- advisoryFEDORA-2013-14355
- advisoryopenSUSE-SU-2013:1339
- advisoryopenSUSE-SU-2013:1349
- advisoryRHSA-2013:1310
FAQ
Common Questions.
Integer overflow in the read_nttrans_ea_list function in nttrans.c in smbd in Samba 3.x before 3.5.22, 3.6.x before 3.6.17, and 4.x before 4.0.8 allows remote attackers to cause a denial of service (memory consumption) via a malformed packet.
Affected: Samba versions 3.0.0, 3.0.1, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.14-a; Ubuntu Linux (Canonical) versions 10.04, 12.04, 12.10, 13.04; Fedora (Fedoraproject) versions 18, 19, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including ctdb 4.5.0-1.1, ctdb-pcp-pmda 4.5.0-1.1, ctdb-tests 4.5.0-1.1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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