Netatalk before 3.2.1 has an off-by-one error, and resultant heap-based buffer overflow and segmentation violation, because of incorrectly using FPLoginExt in BN_bin2bn in etc/uams/uams_dhx_pam.c. The original issue 1097 report stated: 'The latest version of Netatalk (v3.2.0) contains a security vulnerability. This vulnerability arises due to a lack of validation for the length field after parsing user-provided data, leading to an out-of-bounds heap write of one byte (\0). Under specific configurations, this can result in reading metadata of the next heap block, potentially causing a Denial of Service (DoS) under certain heap layouts or with ASAN enabled. ... The vulnerability is located in the FPLoginExt operation of Netatalk, in the BN_bin2bn function found in /etc/uams/uams_dhx_pam.c ... if (!(bn = BN_bin2bn((unsigned char *)ibuf, KEYSIZE, NULL))) ... threads ... [#0] Id 1, Name: "afpd", stopped 0x7ffff4304e58 in ?? (), reason: SIGSEGV ... [#0] 0x7ffff4304e58 mov BYTE PTR [r14+0x8], 0x0 ... mov rdx, QWORD PTR [rsp+0x18] ... afp_login_ext(obj=<optimized out>, ibuf=0x62d000010424 "", ibuflen=0xffffffffffff0015, rbuf=<optimized out>, rbuflen=<optimized out>) ... afp_over_dsi(obj=0x5555556154c0 <obj>).' 2.4.1 and 3.1.19 are also fixed versions.

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-3968 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3968-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                    Thorsten Alteholz     November 28, 2024                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : netatalk     Version        : 3.1.12~ds-8+deb11u2     CVE ID         : CVE-2022-22995 CVE-2024-38439 CVE-2024-38440                      CVE-2024-38441


    Several issues have been found in netatalk, an Apple Filing Protocol     service. Three issues are related to off-by-one errorrs and resultant     heap-based buffer overflow. One issue is related to primitives offered by     SMB and AFP, which might allow an attacker to write arbitrary files and     eventually execute arbitrary code.



    For Debian 11 bullseye, these problems have been fixed in version     3.1.12~ds-8+deb11u2.

    We recommend that you upgrade your netatalk packages.

    For the detailed security status of netatalk please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/netatalk

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-900475e0f7 advisory.

    Security fix for CVE-2024-38439, CVE-2024-38440, and CVE-2024-38441

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2301-1 advisory.

    - CVE-2024-38439: Fixed a heap buffer overflow because of setting       ibuf[PASSWDLEN] to \0 in FPLoginExt in login in etc/uams/uams_pam.c       (bsc#1226430).
    - CVE-2024-38440: Fixed a heap buffer overflow because of incorrectly       using FPLoginExt in BN_bin2bn in etc/uams/uams_dhx_pam.c       (bsc#1226429).
    - CVE-2024-38441: Fixed a heap buffer overflow because of setting       ibuf[len] to \0 in FPMapName in afp_mapname in etc/afp/directory.c       (bsc#1226431).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of netatalk installed on the remote host is prior to 3.2.1. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2024-185-01 advisory.

    New netatalk packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the netatalk security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the c742dbe8-3704-11ef-9e6e-b42e991fc52e advisory.

    cve@mitre.org reports:
    This entry documents the following three vulnerabilities:

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
211927	Debian dla-3968 : netatalk - security update	Nessus	Debian Local Security Checks	critical
201983	Fedora 40 : netatalk (2024-900475e0f7)	Nessus	Fedora Local Security Checks	critical
201904	SUSE SLED12 / SLES12 Security Update : netatalk (SUSE-SU-2024:2301-1)	Nessus	SuSE Local Security Checks	critical
201854	Slackware Linux 15.0 / current netatalk Multiple Vulnerabilities (SSA:2024-185-01)	Nessus	Slackware Local Security Checks	critical
201215	FreeBSD : netatalk3 -- Multiple vulnerabilities (c742dbe8-3704-11ef-9e6e-b42e991fc52e)	Nessus	FreeBSD Local Security Checks	critical

Detections

Analytics

CVE-2024-38440

high

Tenable Plugins

critical

critical

critical

critical

critical