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/sbin/ping -G sweepmax has no bounds check on macOS: deterministic BSS out-of-bounds write, confirmed by Apple

0
Medium
Published: Wed May 13 2026 (05/13/2026, 20:23:39 UTC)
Source: Reddit NetSec

Description

/sbin/ping on macOS contains a vulnerability in the -G sweepmax option where there is no bounds checking, leading to a deterministic out-of-bounds write in the BSS segment. This issue has been confirmed by Apple but no patch or remediation details are provided in the available information.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/19/2026, 19:17:34 UTC

Technical Analysis

The macOS /sbin/ping utility's -G sweepmax parameter lacks proper bounds checking, resulting in a deterministic out-of-bounds write to the BSS memory segment. This vulnerability was confirmed by Apple and is sourced from the Apple open-source network commands repository. No affected versions or patch information are provided, and there is no indication of known exploits in the wild.

Potential Impact

The out-of-bounds write could potentially lead to memory corruption, which might be leveraged for denial of service or other unintended behavior. However, without further details or known exploits, the exact impact remains limited to potential memory safety issues.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, avoid using the -G sweepmax option in /sbin/ping on macOS to mitigate risk.

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Technical Details

Source Type
reddit
Subreddit
netsec
Reddit Score
0
Discussion Level
minimal
Content Source
reddit_link_post
Domain
null
Newsworthiness Assessment
{"score":32,"reasons":["external_link","established_author"],"isNewsworthy":true,"foundNewsworthy":[],"foundNonNewsworthy":[]}
Has External Source
true
Trusted Domain
false

Threat ID: 6a0cb742ba1db47362cb3df8

Added to database: 5/19/2026, 7:17:22 PM

Last enriched: 5/19/2026, 7:17:34 PM

Last updated: 5/20/2026, 8:36:31 AM

Views: 9

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