An exploitable command injection vulnerability exists in the gplotMakeOutput function of Leptonica 1.74.4. A specially crafted gplot rootname argument can cause a command injection resulting in arbitrary code execution. An attacker can provide a malicious path as input to an application that passes attacker data to this function to trigger this vulnerability.

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4819-1 advisory.

    It was discovered that Leptonica incorrectly handled path names. An attacker could possibly use this issue     to obtain sensitive information. This issue only affected Ubuntu 16.04 ESM. (CVE-2017-18196)

    It was discovered that Leptonica incorrectly handled certain input arguments. An attacker could possibly     use this issue to execute arbitrary commands. (CVE-2018-3836)

    It was discovered that Leptonica incorrectly handled input arguments. An attacker could possibly use this     issue to cause a denial of service or other unspecified impact. (CVE-2018-7186)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update fixes CVE-2017-18196.

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This update backports security fixes for CVE-2018-3836, CVE-2018-7186 and CVE-2018-7247.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for leptonica fixes the following issues :

  - CVE-2018-7247: Fixed a buffer overflow in in     src/viewfiles.c with unsanitized input (rootname)     (boo#1081631)

  - CVE-2018-7186: Fixed multiple stack-based buffer     overflows in gplotRead() and ptaReadStream()     (boo#1081576)

  - CVE-2018-3836: Added additional bad characters, to     prevent command injection by invoking it via $(command)     (boo#1079358)

Talosintelligence discovered a command injection vulnerability in the gplotMakeOutput function of leptonlib. A specially crafted gplot rootname argument can cause a command injection resulting in arbitrary code execution. An attacker can provide a malicious path as input to an application that passes attacker data to this function to trigger this vulnerability.

For Debian 7 'Wheezy', these problems have been fixed in version 1.69-3.1+deb7u1.

We recommend that you upgrade your leptonlib packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for leptonica fixes the following issues :

  - CVE-2018-3836: Fixes a command injection vulnerability     (boo#1079358 TALOS-2018-0516)

ID	Name	Product	Family	Type	Severity
183556	Ubuntu 16.04 ESM : Leptonica vulnerabilities (USN-4819-1)	Nessus	Ubuntu Local Security Checks	Local	critical
108310	Fedora 27 : leptonica / mingw-leptonica (2018-cbf621a53c)	Nessus	Fedora Local Security Checks	Local	critical
108309	Fedora 26 : leptonica / mingw-leptonica (2018-78570112db)	Nessus	Fedora Local Security Checks	Local	critical
107181	openSUSE Security Update : leptonica (openSUSE-2018-226)	Nessus	SuSE Local Security Checks	Local	critical
106851	Debian DLA-1284-1 : leptonlib security update	Nessus	Debian Local Security Checks	Local	high
106785	openSUSE Security Update : leptonica (openSUSE-2018-158)	Nessus	SuSE Local Security Checks	Local	high

Detections

Analytics

CVE-2018-3836

high

Tenable Plugins

critical

critical

critical

critical

high

high