# What is CVE-2019-13118?

> CVE-2019-13118 is a medium-severity flaw (CVSS 5.3) in Libxslt from Xmlsoft, published on 1 July 2019. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 5.1%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2019-13118

## At a glance

- **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle.
- **Precursor Intelligence risk score:** 22 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 5.3 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 5.1% (latest exploit-likelihood forecast)
- **Published:** 1 July 2019
- **Record last updated:** 7 November 2023
- **Main product:** Libxslt from Xmlsoft
- **Affected products:** 25

## What is CVE-2019-13118? In plain terms

It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read some data.

### The official description

In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data.

### What kind of flaw is it?

- CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

### How an attack on it works

- Where an attacker can be: Anywhere on the internet
- How hard it is to pull off: Easy: no special conditions
- Login needed first: No login needed
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read some data

Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`

## Is CVE-2019-13118 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 5.1%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 5.1%, 5.1%, 5.1%, 5.1%, 5.1%, 5.1%, 5.1%.

### Timeline

- 1 July 2019: Published
- 7 November 2023: Record last updated

### How Precursor Intelligence ranks it

CVE-2019-13118 scores **22 out of 100 (Low)**, with the action "Monitor".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2019-13118?

The published record lists 25 products. Versions are as published: "before 7.13" means every version up to, but not including, 7.13.

- [Libxslt](https://www.precursorintelligence.com/product/xmlsoft/libxslt) by [Xmlsoft](https://www.precursorintelligence.com/vendors/xmlsoft) (Application): 1.1.33
- [Mac OS X](https://www.precursorintelligence.com/product/apple/mac_os_x) by [Apple](https://www.precursorintelligence.com/vendors/apple) (Operating system): 10.12.6-security_update_2019-001, 10.12.6-security_update_2019-002, 10.12.6-security_update_2019-003, 10.13.6-security_update_2019-001, 10.13.6-security_update_2019-002, 10.13.6-security_update_2019-003
- [Ubuntu Linux](https://www.precursorintelligence.com/product/canonical/ubuntu_linux) by [Canonical](https://www.precursorintelligence.com/vendors/canonical) (Operating system): 12.04, 14.04, 16.04, 18.04, 19.04, 19.10
- [Icloud](https://www.precursorintelligence.com/product/apple/icloud) by [Apple](https://www.precursorintelligence.com/vendors/apple) (Application): before 7.13, 10.0 to before 10.6
- [Active Iq Unified Manager](https://www.precursorintelligence.com/product/netapp/active_iq_unified_manager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Cloud Backup](https://www.precursorintelligence.com/product/netapp/cloud_backup) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Clustered Data Ontap](https://www.precursorintelligence.com/product/netapp/clustered_data_ontap) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [E-Series Performance Analyzer](https://www.precursorintelligence.com/product/netapp/e-series_performance_analyzer) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [E-Series Santricity Management Plug-Ins](https://www.precursorintelligence.com/product/netapp/e-series_santricity_management_plug-ins) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [E-Series Santricity OS Controller](https://www.precursorintelligence.com/product/netapp/e-series_santricity_os_controller) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): 11.0 to 11.50.2
- [E-Series Santricity Storage Manager](https://www.precursorintelligence.com/product/netapp/e-series_santricity_storage_manager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [E-Series Santricity Web Services](https://www.precursorintelligence.com/product/netapp/e-series_santricity_web_services) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Fedora](https://www.precursorintelligence.com/product/fedoraproject/fedora) by [Fedoraproject](https://www.precursorintelligence.com/vendors/fedoraproject) (Operating system): 31
- [iOS](https://www.precursorintelligence.com/product/apple/iphone_os) by [Apple](https://www.precursorintelligence.com/vendors/apple) (Operating system): before 12.4
- [Itunes](https://www.precursorintelligence.com/product/apple/itunes) by [Apple](https://www.precursorintelligence.com/vendors/apple) (Application): before 12.9.6
- [JDK](https://www.precursorintelligence.com/product/oracle/jdk) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.8.0-update231
- [Leap](https://www.precursorintelligence.com/product/opensuse/leap) by [Opensuse](https://www.precursorintelligence.com/vendors/opensuse) (Operating system): 15.1
- [macOS](https://www.precursorintelligence.com/product/apple/macos) by [Apple](https://www.precursorintelligence.com/vendors/apple) (Operating system): 10.4.6 to before 10.14.6
- [Oncommand Insight](https://www.precursorintelligence.com/product/netapp/oncommand_insight) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Oncommand Workflow Automation](https://www.precursorintelligence.com/product/netapp/oncommand_workflow_automation) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Ontap Select Deploy Administration Utility](https://www.precursorintelligence.com/product/netapp/ontap_select_deploy_administration_utility) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Plug-in for Symantec Netbackup](https://www.precursorintelligence.com/product/netapp/plug-in_for_symantec_netbackup) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Santricity Unified Manager](https://www.precursorintelligence.com/product/netapp/santricity_unified_manager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Steelstore Cloud Integrated Storage](https://www.precursorintelligence.com/product/netapp/steelstore_cloud_integrated_storage) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [tvOS](https://www.precursorintelligence.com/product/apple/tvos) by [Apple](https://www.precursorintelligence.com/vendors/apple) (Operating system): before 12.4

## How do I fix CVE-2019-13118?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [gitlab.gnome.org](https://gitlab.gnome.org/GNOME/libxslt/commit/6ce8de69330783977dd14f6569419489875fb71b) (Patch, Third-party advisory)
- [lists.opensuse.org](http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Aug/11) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Aug/13) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Aug/14) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Aug/15) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Jul/22) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Jul/23) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Jul/24) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Jul/26) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Jul/31) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Jul/37) (Mailing list, Third-party advisory)
- [seclists.org](http://seclists.org/fulldisclosure/2019/Jul/38) (Mailing list, Third-party advisory)
- [openwall.com](http://www.openwall.com/lists/oss-security/2019/11/17/2) (Mailing list, Third-party advisory)
- [bugs.chromium.org](https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15069) (Permissions required)
- [lists.apache.org](https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E)
- [lists.debian.org](https://lists.debian.org/debian-lts-announce/2019/07/msg00020.html) (Mailing list, Third-party advisory)
- [lists.fedoraproject.org](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IOYJKXPQCUNBMMQJWYXOR6QRUJZHEDRZ/)
- [oss-fuzz.com](https://oss-fuzz.com/testcase-detail/5197371471822848) (Permissions required)
- [seclists.org](https://seclists.org/bugtraq/2019/Aug/21) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Aug/22) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Aug/23) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Aug/25) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Jul/35) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Jul/36) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Jul/37) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Jul/40) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Jul/41) (Mailing list, Third-party advisory)
- [seclists.org](https://seclists.org/bugtraq/2019/Jul/42) (Mailing list, Third-party advisory)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20190806-0004/) (Third-party advisory)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20200122-0003/) (Third-party advisory)
- [support.apple.com](https://support.apple.com/kb/HT210346) (Third-party advisory)
- [support.apple.com](https://support.apple.com/kb/HT210348) (Third-party advisory)
- [support.apple.com](https://support.apple.com/kb/HT210351) (Third-party advisory)
- [support.apple.com](https://support.apple.com/kb/HT210353) (Third-party advisory)
- [support.apple.com](https://support.apple.com/kb/HT210356) (Third-party advisory)
- [support.apple.com](https://support.apple.com/kb/HT210357) (Third-party advisory)
- [support.apple.com](https://support.apple.com/kb/HT210358) (Third-party advisory)
- [usn.ubuntu.com](https://usn.ubuntu.com/4164-1/) (Third-party advisory)
- [oracle.com](https://www.oracle.com/security-alerts/cpujan2020.html) (Third-party advisory)

## Questions

### What is CVE-2019-13118?

CVE-2019-13118 is a medium-severity flaw in Libxslt from Xmlsoft, published on 1 July 2019. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read some data.

### How serious is CVE-2019-13118?

It scores 5.3 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2019-13118 is 22 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2019-13118 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 5.1%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2019-13118 affect?

For Libxslt from Xmlsoft: 1.1.33. The record lists 25 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2019-13118?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2019-13118 affect you?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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