CVE-2020-15701 | Unhandled exception in apport

Exp

An unhandled exception in check_ignored() in apport/report.py can be exploited by a local attacker to cause a denial of service. If the mtime attribute is a string value in apport-ignore.xml, it will trigger an unhandled exception, resulting in a crash. Fixed in 2.20.1-0ubuntu2.24, 2.20.9-0ubuntu7.16, 2.20.11-0ubuntu27.6.

Published: 2020-08-06 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-15701 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.12%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-15701

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-15701

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.05% 0.12% +0.07%
2 2025-11-18 0.13% 0.05% -0.08%
3 2025-03-17 — 0.13% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-15701

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2020-15701

OS Trackers for CVE-2020-15701

vendor priority summary link
suse medium CVE-2020-15701 severity moderate: SUSE including 3 source package names (apport-0.114-12.8.11.1, apport-crashdb-sle-0.114-0.8.11.1, apport-gtk-0.114-12.8.11.1), 6 product×package rows across 2 product lines (SUSE Linux Enterprise Server 11 SP1-TERADATA, SUSE Linux Enterprise Server 11 SP3-TERADATA): Fixed 6. https://www.suse.com/security/cve/CVE-2020-15701/
ubuntu medium CVE-2020-15701 medium priority: Ubuntu including 1 source packages (apport), 6 status rows across 6 suites (bionic, eoan, focal, trusty, upstream, xenial): released 4, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2020-15701

Affected software / configurations for CVE-2020-15701

Vendor Product Version Raw CPE
canonical apport 2.20.11-0ubuntu8 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu8:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu9 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu9:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu10 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu10:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu11 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu11:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu12 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu12:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu13 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu13:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu14 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu14:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu15 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu15:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu16 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu16:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu17 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu17:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu18 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu18:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu19 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu19:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu20 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu20:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu21 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu21:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu22 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu22:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu23 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu23:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu24 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu24:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu25 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu25:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu26 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu26:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu27 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu27:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu27.2 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu27.2:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu27.3 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu27.3:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu27.4 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu27.4:*:*:*:*:*:*:*
canonical apport 2.20.11-0ubuntu27.5 cpe:2.3:a:canonical:apport:2.20.11-0ubuntu27.5:*:*:*:*:*:*:*
canonical apport 2.20.7-0ubuntu3 cpe:2.3:a:canonical:apport:2.20.7-0ubuntu3:*:*:*:*:*:*:*
canonical apport 2.20.7-0ubuntu3.1 cpe:2.3:a:canonical:apport:2.20.7-0ubuntu3.1:*:*:*:*:*:*:*
canonical apport 2.20.7-0ubuntu4 cpe:2.3:a:canonical:apport:2.20.7-0ubuntu4:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu1 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu1:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu2 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu2:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu3 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu3:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu4 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu4:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu5 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu5:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu6 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu6:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu7 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu7:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu8 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu8:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu9 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu9:*:*:*:*:*:*:*
canonical apport 2.20.8-0ubuntu10 cpe:2.3:a:canonical:apport:2.20.8-0ubuntu10:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu1 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu1:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu2 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu2:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu3 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu3:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu4 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu4:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu5 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu5:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu6 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu6:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.1 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.1:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.2 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.2:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.3 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.3:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.4 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.4:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.5 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.5:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.6 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.6:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.7 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.7:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.8 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.8:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.9 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.9:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.10 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.10:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.11 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.11:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.12 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.12:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.13 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.13:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.14 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.14:*:*:*:*:*:*:*
canonical apport 2.20.9-0ubuntu7.15 cpe:2.3:a:canonical:apport:2.20.9-0ubuntu7.15:*:*:*:*:*:*:*
canonical apport 2.19.1-0ubuntu3 cpe:2.3:a:canonical:apport:2.19.1-0ubuntu3:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu1 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu1:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu2 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu2:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu3 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu3:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu4 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu4:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu5 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu5:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu6 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu6:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu7 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu7:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu8 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu8:*:*:*:*:*:*:*
canonical apport 2.19.2-0ubuntu9 cpe:2.3:a:canonical:apport:2.19.2-0ubuntu9:*:*:*:*:*:*:*
canonical apport 2.19.3-0ubuntu1 cpe:2.3:a:canonical:apport:2.19.3-0ubuntu1:*:*:*:*:*:*:*
canonical apport 2.19.3-0ubuntu2 cpe:2.3:a:canonical:apport:2.19.3-0ubuntu2:*:*:*:*:*:*:*
canonical apport 2.19.3-0ubuntu3 cpe:2.3:a:canonical:apport:2.19.3-0ubuntu3:*:*:*:*:*:*:*
canonical apport 2.19.4-0ubuntu1 cpe:2.3:a:canonical:apport:2.19.4-0ubuntu1:*:*:*:*:*:*:*
canonical apport 2.19.4-0ubuntu2 cpe:2.3:a:canonical:apport:2.19.4-0ubuntu2:*:*:*:*:*:*:*
canonical apport 2.20-0ubuntu1 cpe:2.3:a:canonical:apport:2.20-0ubuntu1:*:*:*:*:*:*:*
canonical apport 2.20-0ubuntu2 cpe:2.3:a:canonical:apport:2.20-0ubuntu2:*:*:*:*:*:*:*
canonical apport 2.20-0ubuntu3 cpe:2.3:a:canonical:apport:2.20-0ubuntu3:*:*:*:*:*:*:*
canonical apport 2.20.1-0ubuntu1 cpe:2.3:a:canonical:apport:2.20.1-0ubuntu1:*:*:*:*:*:*:*
canonical apport 2.20.1-0ubuntu2 cpe:2.3:a:canonical:apport:2.20.1-0ubuntu2:*:*:*:*:*:*:*
canonical apport 2.20.1-0ubuntu2.1 cpe:2.3:a:canonical:apport:2.20.1-0ubuntu2.1:*:*:*:*:*:*:*

References for CVE-2020-15701

URL Tags
https://launchpad.net/bugs/1877023 Exploit Issue Tracking Third Party Advisory
https://usn.ubuntu.com/4449-1 Vendor Advisory
https://usn.ubuntu.com/4449-1/ Vendor Advisory
https://usn.ubuntu.com/4449-2/ Vendor Advisory
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