SUSE SLES15 Security Update : busybox (SUSE-SU-2026:4798-1)

high Nessus Plugin ID 370408

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4798-1 advisory.

- CVE-2026-88830: unit confusion in TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted `ClientKeyExchange` message (bsc#1282575).
- CVE-2026-88831: httpd silently fails open when IP deny rules contain invalid CIDR prefix lengths (bsc#1282550).
- CVE-2026-88832: romfs volume ID parsing uses unbounded `strlen` on attacker-controlled metadata and allows for a heap buffer overflow when crafted filesystem images are processed (bsc#1282576).
- CVE-2026-88835: dpkg read_package_field() steps past NUL terminator, causing out-of-bounds read on malformed .deb packages (bsc#1282551).
- CVE-2026-88837: httpd misidentifies yescrypt password hashes as plaintext (bsc#1282552).
- CVE-2026-88839: passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpoint (bsc#1282568).
- CVE-2026-88841: OOB read and silent memory corruption of the status file due to `write_status_file()` failing to reset the `field_start` cursor between package stanzas (bsc#1282653).

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.

Solution

Update the affected busybox and / or busybox-static packages.

Plugin Details

Severity: High

ID: 370408

File Name: suse_SU-2026-4798-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/22/2026

Updated: 10/22/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.52

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-88830

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-88832

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:busybox-static, p-cpe:/a:novell:suse_linux:busybox

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 9/23/2026

Reference Information

CVE: CVE-2026-88830, CVE-2026-88831, CVE-2026-88832, CVE-2026-88835, CVE-2026-88837, CVE-2026-88839, CVE-2026-88841

SuSE: SUSE-SU-2026:4798-1

Detections

Analytics