CVE-2019-17362

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.1 from GitHub Security Advisory (severity: MODERATE) published 2022-05-24. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated

Also known asEUVD-2019-7770 (ENISA EUVD) · GHSA-x32c-6j92-4hp9 (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 3.1%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
72
EG Risk 72/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
3.1%
EPSS %ILE
87th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
3.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 9, 2019

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Jul 19, 2026
Patch available. Sources: github_pr.
Web page

[SECURITY] Fedora 39 Update: perl-CryptX-0.080-1.fc39 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YU5OMCY3PX54YVI4FMNDEENHDJZJ3RJW/
Web page

[SECURITY] Fedora 38 Update: perl-CryptX-0.080-1.fc38 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/47YP5SXQ4RY6KMTK2HI5ZZR244XKRMCZ/
Web page

[SECURITY] [DLA 1951-1] libtomcrypt security update

https://lists.debian.org/debian-lts-announce/2019/10/msg00010.html
GitHub pull request

Fixes #507

Fix merged in libtom/libtomcrypt PR #508 on 2019-10-08 — awaiting tagged release

https://github.com/libtom/libtomcrypt/pull/508
Web page

CVE-2019-17362 - vulnerability in der_decode_utf8_string · Issue #507 · libtom/libtomcrypt · GitHub

https://github.com/libtom/libtomcrypt/issues/507

Vendor Advisories for CVE-2019-17362(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibtomcrypt0 (1.17-7ubuntu0.1+esm1) @ xenial2026-11-12ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(12 across 12 ecosystems)
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt1.17-6
  • every version up to 1.17-6+deb8u1: fixed in 1.17-6+deb8u1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 19× in last 7d / 84× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 286 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 186 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 05:09 UTCEchelonGraph re-scored
  2. 2026-11-13 05:09 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  3. 2026-11-12 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  4. 2026-11-12 05:17 UTCEchelonGraph re-scored
  5. 2026-11-12 05:17 UTCVendor advisory
  6. 2026-11-12 05:17 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  7. 2026-11-11 16:30 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  8. 2026-11-11 05:25 UTCEchelonGraph re-scored
  9. 2026-11-11 05:25 UTCVendor advisory
  10. 2026-11-11 05:25 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  11. 2026-11-10 16:33 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  12. 2026-11-10 05:33 UTCEchelonGraph re-scored
  13. 2026-11-10 05:33 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  14. 2026-11-09 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  15. 2026-11-09 05:40 UTCEchelonGraph re-scored
  16. 2026-11-09 05:40 UTCVendor advisory
  17. 2026-11-09 05:40 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  18. 2026-11-08 16:31 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  19. 2026-11-08 05:48 UTCEchelonGraph re-scored
  20. 2026-11-08 05:48 UTCVendor advisory
  21. 2026-11-08 05:48 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  22. 2026-11-07 16:32 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  23. 2026-11-07 05:54 UTCEchelonGraph re-scored
  24. 2026-11-07 05:54 UTCVendor advisory
  25. 2026-11-07 05:54 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
Show 75 more
  1. 2026-11-06 16:29 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  2. 2026-11-06 06:02 UTCEchelonGraph re-scored
  3. 2026-11-06 06:02 UTCVendor advisory
  4. 2026-11-06 06:02 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  5. 2026-11-05 16:29 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  6. 2026-11-05 06:10 UTCEchelonGraph re-scored
  7. 2026-11-05 06:10 UTCVendor advisory
  8. 2026-11-05 06:10 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  9. 2026-11-04 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  10. 2026-11-04 06:17 UTCEchelonGraph re-scored
  11. 2026-11-04 06:17 UTCVendor advisory
  12. 2026-11-04 06:17 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  13. 2026-11-03 16:35 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  14. 2026-11-03 06:24 UTCEchelonGraph re-scored
  15. 2026-11-03 06:24 UTCVendor advisory
  16. 2026-11-03 06:24 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  17. 2026-11-03 03:55 UTCOSV refresh
  18. 2026-11-02 06:31 UTCEchelonGraph re-scored
  19. 2026-11-02 06:31 UTCVendor advisory
  20. 2026-11-02 06:30 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  21. 2026-11-01 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  22. 2026-11-01 06:38 UTCEchelonGraph re-scored
  23. 2026-11-01 06:38 UTCVendor advisory
  24. 2026-11-01 06:38 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  25. 2026-10-31 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  26. 2026-10-31 06:46 UTCEchelonGraph re-scored
  27. 2026-10-31 06:46 UTCVendor advisory
  28. 2026-10-31 06:46 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  29. 2026-10-30 16:29 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  30. 2026-10-30 06:53 UTCEchelonGraph re-scored
  31. 2026-10-30 06:53 UTCVendor advisory
  32. 2026-10-30 06:53 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  33. 2026-10-29 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  34. 2026-10-29 07:01 UTCEchelonGraph re-scored
  35. 2026-10-29 07:01 UTCVendor advisory
  36. 2026-10-29 07:01 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  37. 2026-10-28 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  38. 2026-10-28 07:09 UTCEchelonGraph re-scored
  39. 2026-10-28 07:09 UTCVendor advisory
  40. 2026-10-28 07:09 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  41. 2026-10-27 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  42. 2026-10-27 07:15 UTCEchelonGraph re-scored
  43. 2026-10-27 07:15 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  44. 2026-10-26 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  45. 2026-10-26 04:17 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  46. 2026-10-25 19:03 UTCEchelonGraph re-scored
  47. 2026-10-25 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  48. 2026-10-25 04:23 UTCEchelonGraph re-scored
  49. 2026-10-25 04:23 UTCVendor advisory
  50. 2026-10-25 04:23 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  51. 2026-10-24 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  52. 2026-10-24 04:31 UTCEchelonGraph re-scored
  53. 2026-10-24 04:31 UTCVendor advisory
  54. 2026-10-24 04:31 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  55. 2026-10-23 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  56. 2026-10-23 04:39 UTCEchelonGraph re-scored
  57. 2026-10-23 04:39 UTCVendor advisory
  58. 2026-10-23 04:39 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  59. 2026-10-22 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  60. 2026-10-22 04:47 UTCEchelonGraph re-scored
  61. 2026-10-22 04:47 UTCVendor advisory
  62. 2026-10-22 04:47 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  63. 2026-10-21 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  64. 2026-10-21 04:51 UTCEchelonGraph re-scored
  65. 2026-10-21 04:51 UTCVendor advisory
  66. 2026-10-21 04:51 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  67. 2026-10-20 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  68. 2026-10-20 04:58 UTCEchelonGraph re-scored
  69. 2026-10-20 04:58 UTCVendor advisory
  70. 2026-10-20 04:57 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  71. 2026-10-19 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  72. 2026-10-19 05:03 UTCEchelonGraph re-scored
  73. 2026-10-19 05:03 UTCVendor advisory
  74. 2026-10-19 05:03 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  75. 2026-10-18 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile

Frequently asked(5)

What is CVE-2019-17362?
CVE-2019-17362 is a critical-severity vulnerability; its CVE record was published on October 9, 2019. In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory…
When was the CVE record for CVE-2019-17362 published?
The CVE record for CVE-2019-17362 was published on October 9, 2019. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2019-17362 actively exploited?
CVE-2019-17362 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.1% probability of exploitation in the next 30 days (87th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2019-17362?
CVE-2019-17362 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2019-17362?
A fix for CVE-2019-17362 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-17362 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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