re2c 1.3 has a heap-based buffer overflow in Scanner::fill in parse/scanner.cc via a long lexeme.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - re2c 1.3 has a heap-based buffer overflow in Scanner::fill in parse/scanner.cc via a long lexeme.
    (CVE-2020-11958)

The remote host is affected by the vulnerability described in GLSA-202007-28 (re2c: Buffer overflow)

    A heap buffer overflow vulnerability was discovered in re2c.
  Impact :

    An attacker could possibly cause a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

The remote Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4338-2 advisory.

    USN-4338-1 fixed vulnerabilities in re2c. This update provides the corresponding update for Ubuntu 20.04     LTS.



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

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

Agostino Sarubbo discovered that re2c incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code.

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

ID	Name	Product	Family	Severity
424456	Alpine: multiple re2c packages: security update to 1.3-r1	Tenable Cloud Security	Alpine Linux Local Security Checks	high
424456	Alpine: multiple re2c packages: security update to 1.3-r1	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
400374	Alpine: multiple re2c packages: security update to 1.3-r0 (deprecated)	Tenable Cloud Security	Alpine Linux Local Security Checks	high
400374	Alpine: multiple re2c packages: security update to 1.3-r0 (deprecated)	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
138951	GLSA-202007-28 : re2c: Buffer overflow	Nessus	Gentoo Local Security Checks	high
136083	Ubuntu 20.04 LTS : re2c vulnerability (USN-4338-2)	Nessus	Ubuntu Local Security Checks	high
135968	Ubuntu 19.10 : re2c vulnerability (USN-4338-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2020-11958

high

Tenable Plugins

high

high

high

high

high

high

high