CVE-2026-110926
개요
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
내용
Status: REJECTED
Reason: Duplicate
CVE-2026-110926 has been marked as a duplicate of CVE-2026-106582.
CVSS (Common Vulnerability Scoring System) 점수 세부 사항
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 점수 분석
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| 기본 점수 | 5.3 | N/A | 5.3 |
| 공격 벡터 | Network | N/A | Network |
| 공격 복잡성 | High | N/A | High |
| 필요한 권한 | Low | N/A | Low |
| 사용자 상호 작용 | None | N/A | None |
| 범위 | Unchanged | N/A | Unchanged |
| 기밀성 | High | N/A | High |
| 무결성에 미치는 영향 | None | N/A | None |
| 가용성에 미치는 영향 | None | N/A | None |
벡터
Red Hat: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
취약점 이해 (CWE)
Confidentiality,Access Control
Technical Impact: Read Application Data; Bypass Protection Mechanism
An attacker can gain access to sensitive information about the system, including authentication information that may allow an attacker to gain access to the system. Other security-relevant information about the operation or internal state of the product may be revealed to an unauthorized actor, such as whether a particular operation was successful or not.
Confidentiality
Technical Impact: Read Application Data
In some cases, discrepancies can be used by attackers to form a side channel. When cryptographic primitives are vulnerable to side-channel attacks, this could be used to reveal unencrypted plaintext in the worst case.
감사의 말
Red Hat would like to thank Fabian Bäumer and Marcus Brinkmann for reporting this issue.
