CVE-2022-26477
HIGH7.5EPSS 6.1%SystemDS CPU exhaustion vulnerability
描述
The Security Team noticed that the termination condition of the for loop in the readExternal method is a controllable variable, which, if tampered with, may lead to CPU exhaustion. As a fix, we added an upper bound and termination condition in the read and write logic. We classify it as a "low-priority but useful improvement". SystemDS is a distributed system and needs to serialize/deserialize data but in many code paths (e.g., on Spark broadcast/shuffle or writing to sequence files) the byte stream is anyway protected by additional CRC fingerprints. In this particular case though, the number of decoders is upper-bounded by twice the number of columns, which means an attacker would need to modify two entries in the byte stream in a consistent manner. By adding these checks robustness was strictly improved with almost zero overhead. These code changes are available in versions higher than 2.2.1.
受影響套件(3)
- Maven/org.apache.systemds:systemdsfrom 0, < 2.2.2
- PyPI/systemdsfrom 0, < 2.2.2
- PyPI/systemdsfrom 0, < 2.2.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
參考連結(6)
- ADVISORYhttps://github.com/advisories/GHSA-m43h-hfrq-x8wx
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2022-26477
- PATCHhttps://github.com/apache/systemds
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/systemds/PYSEC-2022-222.yaml
- WEBhttps://lists.apache.org/thread/r4x2d2r6d4zykdrrx6s2l4qbxgzws0z3
- WEBhttps://security.netapp.com/advisory/ntap-20220812-0003