| Name | CVE-2015-7540 |
| Description | The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful ASN.1 memory allocation, which allows remote attackers to cause a denial of service (memory consumption and daemon crash) via crafted packets. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3433-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| samba (PTS) | jessie, jessie (lts) | 2:4.2.14+dfsg-0+deb8u16 | fixed |
| stretch (security) | 2:4.5.16+dfsg-1+deb9u4 | fixed |
| stretch (lts), stretch | 2:4.5.16+dfsg-1+deb9u5 | fixed |
| buster (security), buster, buster (lts) | 2:4.9.5+dfsg-5+deb10u5 | fixed |
| bullseye (security), bullseye | 2:4.13.13+dfsg-1~deb11u6 | fixed |
| bookworm (security), bookworm | 2:4.17.12+dfsg-0+deb12u1 | fixed |
| trixie | 2:4.21.2+dfsg-3 | fixed |
| sid | 2:4.21.2+dfsg-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| samba | source | squeeze | (not affected) | | | |
| samba | source | wheezy | 2:3.6.6-6+deb7u6 | | DSA-3433-1 | |
| samba | source | jessie | 2:4.1.17+dfsg-2+deb8u1 | | DSA-3433-1 | |
| samba | source | (unstable) | 2:4.1.22+dfsg-1 | | | |
Notes
[wheezy] - samba <not-affected> (Only affects 4.0.0 to 4.1.21)
[squeeze] - samba <not-affected> (Only affects 4.0.0 to 4.1.21)
https://www.samba.org/samba/security/CVE-2015-7540.html