CVE-2021-33464
published 2022-07-26CVE-2021-33464: An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
PriorityP418medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
0.32%
23.6th percentile
An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | yasm | < yasm 1.3.0-7 (forky) | yasm 1.3.0-7 (forky) |
| msrc | azl3_yasm_1.3.0-17_on_azure_linux_3.0 | — | — |
| msrc | cbl2_yasm_1.3.0-16_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_yasm_1.3.0-14_on_cbl_mariner_1.0 | — | — |
| tortall | yasm | — | — |
| yasm_project | yasm | >= 0 < 1.3.0-7 | 1.3.0-7 |
| yasm_project | yasm | >= 0 < 1.3.0-7 | 1.3.0-7 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
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GHSA
GHSA-j4jc-fh4v-27gw: An issue was discovered in yasm version 1
ghsa_unreviewed·2022-07-27
CVE-2021-33464 [MEDIUM] CWE-787 GHSA-j4jc-fh4v-27gw: An issue was discovered in yasm version 1
An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
OSV
CVE-2021-33464: An issue was discovered in yasm version 1
osv·2022-07-26·CVSS 5.5
CVE-2021-33464 [MEDIUM] CVE-2021-33464: An issue was discovered in yasm version 1
An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
Microsoft
An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
vendor_msrc·2022-07-12·CVSS 5.5
CVE-2021-33464 [MEDIUM] CWE-787 An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Customer Action
Debian
CVE-2021-33464: yasm - An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow i...
vendor_debian·2021·CVSS 5.5
CVE-2021-33464 [MEDIUM] CVE-2021-33464: yasm - An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow i...
An issue was discovered in yasm version 1.3.0. There is a heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 1.3.0-7)
sid: resolved (fixed in 1.3.0-7)
trixie: resolved (fixed in 1.3.0-7)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-07-26
Published