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CVE-2023-37732

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c,...

5.5 MediumFix available

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.37%Up 0.3 points since Jul 27, 2023
90%50%10%1%

What each source reports

NVD Score used 5.5

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
CVE-2023-37732
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
CVE List No score

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
CVE-2023-37732
Updated
2026-11-02
EUVDEUVD-2023-41609 No score

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
EUVD-2023-41609
Updated
2026-11-03
GitHub AdvisoriesGHSA-4p37-82f3-xmhv 5.5

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c,...

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
GHSA-4p37-82f3-xmhv
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
OSVAZL-27658 5.5

CVE-2023-37732 affecting package yasm for versions less than 1.3.0-16

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
AZL-27658
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVAZL-35395 5.5

CVE-2023-37732 affecting package yasm for versions less than 1.3.0-16

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
AZL-35395
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 4 moreShow less
OSV 5.5

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
CVE-2023-37732
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2023-37732 5.5

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
DEBIAN-CVE-2023-37732
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2023-1508 5.5

yasm security update

Yasm is a complete rewrite of the NASM assembler under the “new” BSD License.

Security Fix(es):

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.(CVE-2023-37732)

Record
OESA-2023-1508
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2023-37732 5.5

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.

Record
UBUNTU-CVE-2023-37732
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
yasm
Azure Linux:2
 before 1.3.0-16
1.3.0-16
yasm
Azure Linux:3
 before 1.3.0-16
1.3.0-16
yasm
Debian:12
 All versions, plus listed versions
1.3.0-41.3.0-51.3.0-61.3.0-71.3.0-8
 None known
yasm
Debian:13
 All versions, plus listed versions
1.3.0-71.3.0-8
 None known
yasm
Debian:14
 All versions, plus listed versions
1.3.0-71.3.0-8
 None known
yasm
openEuler:20.03-LTS-SP1
 before 1.3.0-10.oe1
1.3.0-10.oe1
yasm
openEuler:20.03-LTS-SP3
 before 1.3.0-10.oe1
1.3.0-10.oe1
yasm
openEuler:22.03-LTS
 before 1.3.0-11.oe2203sp2
1.3.0-11.oe2203sp2
yasm
openEuler:22.03-LTS-SP1
 before 1.3.0-11.oe2203sp1
1.3.0-11.oe2203sp1
yasm
openEuler:22.03-LTS-SP2
 before 1.3.0-11.oe2203sp2
1.3.0-11.oe2203sp2
Show 8 moreShow less
Affected packages
PackageAffectedFixed
yasm
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.3.0-2
 None known
yasm
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.3.0-21.3.0-2build1
 None known
yasm
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.3.0-2build11.3.0-2ubuntu1
 None known
yasm
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.3.0-2.1
 None known
yasm
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.3.0-4
 None known
yasm
Ubuntu:25.10
 All versions, plus listed versions
1.3.0-51.3.0-7
 None known
yasm
Ubuntu:26.10
 All versions, plus listed versions
1.3.0-8
 None known
yasm
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.3.0-71.3.0-8
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2023-37732 is a medium vulnerability (CVSS 5.5) in Yasm Project Yasm, published July 26, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. Fixed in yasm 1.3.0-16.

References

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