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FreeBSD : e2fsprogs -- rehash.c/pass 3a mutate_name() code execution vulnerability (8b61308b-322a-11ea-b34b-1de6fb24355d)
medium Nessus Plugin ID 132793
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Synopsis
The remote FreeBSD host is missing a security-related update.Description
Lilith of Cisco Talos reports :A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.
Theodore Y. Ts'o reports :
E2fsprogs 1.45.5 [...:] Fix a potential out of bounds write when checking a maliciously corrupted file system. This is probably not exploitable on 64-bit platforms, but may be exploitable on 32-bit binaries depending on how the compiler lays out the stack variables.
(Addresses CVE-2019-5188)
Solution
Update the affected package.See Also
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0973
http://e2fsprogs.sourceforge.net/e2fsprogs-release.html#1.45.5
Plugin Details
Severity: Medium
ID: 132793
File Name: freebsd_pkg_8b61308b322a11eab34b1de6fb24355d.nasl
Version: 1.5
Type: local
Family: FreeBSD Local Security Checks
Published: 1/13/2020
Updated: 4/1/2024
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 4.4
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2019-5188
CVSS v3
Risk Factor: Medium
Base Score: 6.7
Temporal Score: 6
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:freebsd:freebsd:e2fsprogs, cpe:/o:freebsd:freebsd
Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/8/2020
Vulnerability Publication Date: 12/18/2019
Reference Information
CVE: CVE-2019-5188