OPENSUSE-SU-2026:20437-1
Vulnerability from csaf_opensuse - Published: 2026-03-26 15:12 - Updated: 2026-03-26 15:12Summary
Security update for net-tools
Severity
Moderate
Notes
Title of the patch: Security update for net-tools
Description of the patch: This update for net-tools fixes the following issues:
- Fix stack buffer overflow in parse_hex (bsc#1248687, GHSA-h667-qrp8-gj58).
- Fix stack-based buffer overflow in proc_gen_fmt (bsc#1248687, GHSA-w7jq-cmw2-cq59).
- Avoid unsafe memcpy in ifconfig (bsc#1248687).
- Prevent overflow in ax25 and netrom (bsc#1248687)
- Keep possibility to enter long interface names, even if they are
not accepted by the kernel, because it was always possible up to
CVE-2025-46836 fix. But issue a warning about an interface name
concatenation (bsc#1248410).
Patchnames: openSUSE-Leap-16.0-454
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
6.6 (Medium)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
References
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"text": "net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig) from the net-tools package do not properly validate the structure of /proc files when showing interfaces. `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack path does not require privilege but also does not provide privilege escalation in this scenario. A patch is available and expected to be part of version 2.20.",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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