CVE-2020-13844 — Observable Discrepancy in Leap

CWE-203 — Observable DiscrepancyCWE-200 — Sensitive Information Exposure8 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.1%
top 66.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Opensuse Leap
Timeline
PublishedJun 8
Latest updateMay 24

Description

Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages1 packages

▶NVDopensuse/leap15.1, 15.2+1

Patches

Patch: gcc.gnu.org ↗Patch: gcc.gnu.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-jwjh-w2wp-2gvv: Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of infor↗2022-05-24
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OSV
CVE-2020-13844: In exception handling functions of multiple files, there is a possible info leak due to side channel information disclosure↗2022-04-01
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OSV
CVE-2020-13844: Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of infor↗2020-06-08
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CVEList
CVE-2020-13844: Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of infor↗2020-06-08
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📋Vendor Advisories

1
Red Hat
kernel: ARM straight-line speculation vulnerability↗2020-06-07
▶

💬Community

2
Bugzilla
CVE-2020-13844 kernel: ARM straight-line speculation vulnerability [fedora-all]↗2020-06-18
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Bugzilla
CVE-2020-13844 kernel: ARM straight-line speculation vulnerability↗2020-06-18
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CVE-2020-13844 — Observable Discrepancy in Leap | cvebase