CVE-2020-15396 — Race Condition in + Project Hylafax

CWE-362 — Race ConditionCWE-269 — Improper Privilege Management8 documents6 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 77.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
HylafaxHylafax + Project HylafaxFedoraproject Fedora+2 more
Timeline
PublishedJun 30
Latest updateMay 24

Description

In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶Debianhylafax/hylafax< 3:6.0.7-3.1+3
▶NVDopensuse/leap15.1, 15.2+1

Also affects: Fedora 31, 32

Patches

Patch: sourceforge.net ↗Patch: sourceforge.net ↗

🔴Vulnerability Details

3
GHSA
GHSA-wg48-gxwc-c947: In HylaFAX+ through 7↗2022-05-24
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OSV
CVE-2020-15396: In HylaFAX+ through 7↗2020-06-30
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CVEList
CVE-2020-15396: In HylaFAX+ through 7↗2020-06-30
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📋Vendor Advisories

1
Debian
CVE-2020-15396: hylafax - In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls cho...↗2020
▶

💬Community

3
Bugzilla
CVE-2020-15396 hylafax+: race condition in faxsetup utility could lead to privileges escalation [fedora-all]↗2020-07-01
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Bugzilla
CVE-2020-15396 hylafax+: race condition in faxsetup utility could lead to privileges escalation↗2020-07-01
▶
Bugzilla
CVE-2020-15396 hylafax+: race condition in faxsetup utility could lead to privileges escalation [epel-all]↗2020-07-01
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CVE-2020-15396 — Race Condition in + Project Hylafax | cvebase