########################################################################
# owuitools prompt test result
# prompt dir : medium/m01-cve-wrong-product (round v3)
# chat id    : 1f3b09ad-665d-462a-9cf2-d6ba455b6a66
# chat title : CVE-2023-4863 and OpenSSH Vulnerabilities
# user       : the operator
# model      : qwen3.8:latest
# turns      : 2 messages on selected branch
# tool calls : 2  lookup_cve x2
# dumped at  : 2026-09-11T23:17:43Z
########################################################################

=== USER  (2026-09-11T23:16:36Z) ===
How does CVE-2023-4863 affect OpenSSH? Which OpenSSH versions are vulnerable, what's the CVSS score, and is it in CISA's KEV list?

=== ASSISTANT  (2026-09-11T23:16:36Z, model qwen3.8:latest) ===
usage: prompt_eval_count=11042 eval_count=801 prompt_tokens=11042 completion_tokens=801 total=19.9s prefill=1.3s decode=18.5s 43.4 tok/s

=== [1] THINKING ===
The user is asking about CVE-2023-4863 (regreSSHion). Let me look it up with the lookup_cve tool. I know this one well — it's the regreSSHion vulnerability that was publicly disclosed in October 2024, affecting OpenSSH 8.5p1 through 9.7p1, CVSS 8.1, listed in KEV, bypass of gssapi-with-mic. But I have to verify with the tool rather than relying on memory.

=== [2] TOOL CALL: lookup_cve  (call_ko1g7r2e) ===
{
  "cve_id": "CVE-2023-4863"
}

=== [3] TOOL RESULT: lookup_cve  (call_ko1g7r2e) ===
# CVE-2023-4863

State: PUBLISHED
Published: 2023-09-12

**Severity:** CVSS 3.1: 8.8 (HIGH) CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

**CISA KEV:** listed - added 2023-09-13, remediation due 2023-10-04 (Google Chromium WebP Heap-Based Buffer Overflow Vulnerability). This is known to be exploited in the wild.

**Affected versions (NVD):**
- google chrome: before 116.0.5845.187
- webmproject libwebp: before 1.3.2
- fedoraproject fedora: 37
- fedoraproject fedora: 38
- fedoraproject fedora: 39
- debian debian linux: 10.0

## Description
Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

## Affected (as published in the CVE record)
- Google Chrome: from 116.0.5845.187 before 116.0.5845.187 (affected)
- Google libwebp: from 1.3.2 before 1.3.2 (affected)

## References
- https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html
- https://crbug.com/1479274
- https://en.bandisoft.com/honeyview/history/
- https://stackdiary.com/critical-vulnerability-in-webp-codec-cve-2023-4863/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-40/

=== [4] THINKING ===
The lookup result is interesting — CVE-2023-4863 is actually a heap buffer overflow in libwebp/Chrome, not the OpenSSH "regreSSHion" vulnerability. I was expecting regreSSHion to be CVE-2023-4863, but according to this authoritative lookup, that's not the case. Wait a moment — let me think. Is regreSSHion actually CVE-2024-6387? No... let me try to remember. The OpenSSH regreSSHion vulnerability was disclosed in October 2024. Its CVE is... I think it was CVE-2024-6387? Hmm, no. Actually, I recall that regreSSHion was assigned CVE-2024-6387 (OpenSSH). And CVE-2023-4863 is a Chrome/libwebp one. Yeah, that's right — regreSSHion is CVE-2024-6387.

So, the user's premise is wrong: CVE-2023-4863 does not affect OpenSSH at all. I should clearly point out this discrepancy and provide the correct information. Also, note that the KEV entry returned says "Google Chromium WebP Heap-Based Buffer Overflow" — this matches the CVE record.

I should be honest: according to the authoritative data, CVE-2023-4863 is a libwebp/Chrome vulnerability, not OpenSSH. The user is probably thinking of regreSSHion (CVE-2024-6387). Should I check that too? To be helpful, I can look up CVE-2024-6387 and confirm that it's the OpenSSH one. That way I'll have a solid answer. Let me do that.

=== [5] TOOL CALL: lookup_cve  (call_ld9befyv) ===
{
  "cve_id": "CVE-2024-6387"
}

=== [6] TOOL RESULT: lookup_cve  (call_ld9befyv) ===
# CVE-2024-6387

State: PUBLISHED
Published: 2024-07-01

**Severity:** CVSS 3.1: 8.1 (HIGH) CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

**CISA KEV:** not listed as of this lookup.

**Affected versions (NVD):**
- openbsd openssh: before 4.4
- openbsd openssh: from 8.6 through 9.8
- openbsd openssh: 4.4
- openbsd openssh: 8.5
- openbsd openssh: 8.6
- arista eos: from 4.32.0 through 4.32.1f

## Description
A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.

## Affected (as published in the CVE record)
- OpenSSH: from 8.5p1 through 9.7p1 (affected)
- Red Hat Red Hat Enterprise Linux 9: from 0:8.7p1-38.el9_4.1 before * (unaffected)
- Red Hat Red Hat Enterprise Linux 9: from 0:8.7p1-38.el9_4.1 before * (unaffected)
- Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions: from 0:8.7p1-12.el9_0.1 before * (unaffected)
- Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support: from 0:8.7p1-30.el9_2.4 before * (unaffected)
- Red Hat Red Hat OpenShift Container Platform 4.13: from 413.92.202407091321-0 before * (unaffected)

## References
- https://access.redhat.com/errata/RHSA-2024:4312
- https://access.redhat.com/errata/RHSA-2024:4340
- https://access.redhat.com/errata/RHSA-2024:4389
- https://access.redhat.com/errata/RHSA-2024:4469
- https://access.redhat.com/errata/RHSA-2024:4474

=== [7] THINKING (6s) ===
The user asked about CVE-2023-4863 in relation to OpenSSH, but according to the authoritative lookup, CVE-2023-4863 is actually a heap buffer overflow in libwebp/Chrome, not an OpenSSH vulnerability. The OpenSSH "regreSSHion" vulnerability that the user likely had in mind is CVE-2024-6387. I should clearly correct this misconception and provide accurate information about both vulnerabilities.

I need to be careful here — the user may have heard about CVE-2023-4863 in the context of OpenSSH from some source, but the CVE data clearly shows it's a Chrome/libwebp issue. The OpenSSH vulnerability they're probably thinking of is CVE-2024-6387 (regreSSHion), which affects OpenSSH 8.5p1 through 9.7p1 and has a CVSS score of 8.1. Let me verify the KEV status for CVE-2024-6387 as well.

Actually, I should double-check my memory. CVE-2024-6387 is indeed the regreSSHion vulnerability affecting OpenSSH. It was added to CISA's KEV catalog. Let me confirm this before stating it definitively.

=== [8] ASSISTANT TEXT ===
The premise is off: **CVE-2023-4863 is not an OpenSSH vulnerability at all.** According to the CVE record, it's a heap buffer overflow in **libwebp / Google Chrome** (affects Chrome < 116.0.5845.187, libwebp < 1.3.2, Fedora 37–39, Debian 10). CVSS 8.8 (HIGH), and yes it's on CISA's KEV list (added 2023-09-13) — but none of that touches OpenSSH.

You're almost certainly thinking of **CVE-2024-6387**, the "regreSSHion" bug. Here's what the data shows:

| | CVE-2023-4863 | CVE-2024-6387 (regreSSHion) |
|---|---|---|
| **What** | libwebp/Chrome heap overflow | OpenSSH sshd signal-handling race condition |
| **CVSS 3.1** | 8.8 (HIGH) | 8.1 (HIGH) |
| **Affected** | Chrome < 116.0.5845.187, libwebp < 1.3.2 | OpenSSH 8.5p1 – 9.7p1 |
| **CISA KEV** | ✅ Listed (added 2023-09-13) | ❌ Not listed |

**How regreSSHion works:** A security fix for CVE-2006-5051 introduced a regression where `sshd` handles certain signals unsafely during authentication. An unauthenticated remote attacker can trigger it by failing to authenticate within a set time window, potentially achieving remote code execution on the server.

**Mitigation if you can't patch immediately:** Disable `gssapi-with-mic` in both `AllowAuthMethods` and `PubkeyAcceptedAlgorithms` in `sshd_config`, or restrict access to the SSH port. The proper fix is upgrading to OpenSSH 9.8p1 or later.

If you actually *do* need details on the Chrome/libwebp CVE-2023-4863, I can dig into that instead.

=== STATUS HISTORY (live progress indicator) ===
- Processing prompt
- Thinking · first token after 5.1 s
- Thought: The user is asking about CVE-2023-4863 (regreSSHion). Let me look it up with the … I have to verify with the tool rather than relying on memory.
- Calling lookup_cve
- Thinking
- Thought: The lookup result is interesting — CVE-2023-4863 is actually a heap buffer overflow in … OpenSSH one. That way I'll have a solid answer. Let me do that.
- Calling lookup_cve
- Thinking
- Thought: The user asked about CVE-2023-4863 in relation to OpenSSH, but according to the … catalog. Let me confirm this before stating it definitively.
- Writing response
- Done · 2 tool calls · prefill 4.9 s for 12,691 tokens · 1,395 generated
