CVE-2019-6456

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function...

6.5 MediumFix available

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.34%Up 0.9 points since Apr 14, 2021

What each source reports

NVD Score used 6.5

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Record: CVE-2019-6456
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-476
Updated: 2026-11-02

CVE List No score

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Record: CVE-2019-6456
Updated: 2026-11-02

EUVDEUVD-2019-16016 No score

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Record: EUVD-2019-16016
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mx2f-h83q-m8g6 6.5

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function...

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Record: GHSA-mx2f-h83q-m8g6
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

OSV 6.5

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Record: CVE-2019-6456
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2019-6456 6.5

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Record: DEBIAN-CVE-2019-6456
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2019-6456 6.5

An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of librec.a.

Record: UBUNTU-CVE-2019-6456
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUSN-7137-1 No score

recutils vulnerabilities

It was discovered that recutils incorrectly handled memory when parsing comments with the recparser utility. An attacker could possibly use this issue to cause a denial of service or run arbitrary commands. (CVE-2021-46019, CVE-2021-46021, CVE-2021-46022)

It was discovered that recutils incorrectly handled memory when parsing CSV files. An attacker could possibly use this issue to cause a denial of service or run arbitrary commands. (CVE-2019-11637, CVE-2019-11638, CVE-2019-11639, CVE-2019-11640)

It was discovered that recutils incorrectly handled memory when parsing maliciously crafted recfiles. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-6455, CVE-2019-6456, CVE-2019-6457, CVE-2019-6458, CVE-2019-6459, CVE-2019-6460)

Record: USN-7137-1
Updated: 2026-11-02

Affected products

gnu recutils

Affected packages

Affected packages
Package	Affected	Fixed
`recutils` Debian:12	All versions, plus listed versions 1.9-21.9-31.9-41.9-4~bpo13+1	None known
`recutils` Debian:14	All versions, plus listed versions 1.3-101.3-111.3-91.4-11.5-1 Show 11 moreShow less 1.5-1.11.7-11.7-1.11.7-21.7-31.8-11.9-11.9-21.9-31.9-41.9-4~bpo13+1	None known
`recutils` Ubuntu:Pro:16.04:LTS	before 1.7-1ubuntu0.1~esm1, plus listed versions 1.7-1	1.7-1ubuntu0.1~esm1
`recutils` Ubuntu:Pro:18.04:LTS	before 1.7-2ubuntu0.1~esm1, plus listed versions 1.7-1.11.7-2	1.7-2ubuntu0.1~esm1
`recutils` Ubuntu:Pro:20.04:LTS	before 1.8-1ubuntu0.20.04.1~esm1, plus listed versions 1.7-3build11.8-1	1.8-1ubuntu0.20.04.1~esm1
`recutils` Ubuntu:Pro:22.04:LTS	before 1.8-1ubuntu0.22.04.1~esm1, plus listed versions 1.8-1	1.8-1ubuntu0.22.04.1~esm1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-6456 is a medium vulnerability (CVSS 6.5) in Gnu Recutils, published January 16, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.34%, the 71st percentile. Fixed in recutils 1.7-1ubuntu0.1~esm1.

References

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