CVE-2020-8244

mediumpriority · track · 27EPSS 0.022 · 82 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.18% (82nd) EPSS

CVSS 6.4 · medium

Is it mine?

14 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-23

A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 2.5

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Lsecondary · OSV

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125USCWE-126USCWE-126US

affected products (14)

Products and version ranges known to be affected.

IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
IBM Security Guardium Insights 2.0.2all versionscert_bundDEcpe:/a:ibm:security_guardium:10.0
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a bl≤ Fixed in 4.0.3, 3.0.1, 2.2.1, and 1.2.3enisa_euvdEU
bufferlist project bufferlist< 1.2.3nvdUScpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:*:*:*
bufferlist project bufferlist2.0.0 → 2.2.1nvdUScpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:*:*:*
bufferlist project bufferlist3.0.0 → 3.0.1nvdUScpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:*:*:*
bufferlist project bufferlist4.0.0 → 4.0.3nvdUScpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
npm bl< 1.2.3osvUSpkg:npm/bl
npm bl2.0.0 → 2.2.1osvUSpkg:npm/bl
npm bl3.0.0 → 3.0.1osvUSpkg:npm/bl
npm bl4.0.0 → 4.0.3osvUSpkg:npm/bl

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1599IBM Security Guardium: Mehrere SchwachstellenDeutsch2021-01-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM Security Guardium ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.
GHSA-pp7h-53gx-mx7rRemote Memory Exposure in bl2020-09-02ghsa · osvUS
A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2020-08-30modified 2026-06-17

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+11771 more

references (18)

External citations — patches, advisories, analysis.

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