CVE-2025-8836
published 2025-08-11CVE-2025-8836: A vulnerability was determined in JasPer up to 4.2.5. Affected by this issue is the function jpc_floorlog2 of the file src/libjasper/jpc/jpc_enc.c of the…
PriorityP411low3.3CVSS 3.1
AVLACLPRLUINSUCNINAL
EPSS
0.19%
8.4th percentile
A vulnerability was determined in JasPer up to 4.2.5. Affected by this issue is the function jpc_floorlog2 of the file src/libjasper/jpc/jpc_enc.c of the component JPEG2000 Encoder. The manipulation leads to reachable assertion. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as 79185d32d7a444abae441935b20ae4676b3513d4. It is recommended to apply a patch to fix this issue.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| jasper_project | jasper | <= 4.2.5 | — |
| jasper_project | jasper | — | — |
| jasper_project | jasper | — | — |
| jasper_project | jasper | — | — |
| jasper_project | jasper | — | — |
| jasper_project | jasper | — | — |
| jasper_project | jasper | — | — |
| msrc | azl3_jasper_4.2.1-2_on_azure_linux_3.0 | — | — |
| msrc | azl3_jasper_4.2.1-3_on_azure_linux_3.0 | — | — |
| msrc | cbl2_jasper_2.0.32-4_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_jasper_2.0.32-5_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.13.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
nvdv4.01.9LOWCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.01.7LOWAV:L/AC:L/Au:S/C:N/I:N/A:P
osv4.8MEDIUM
vendor_msrc3.3LOW
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OSV
CVE-2025-8836: A vulnerability was determined in JasPer up to 4
osv·2025-08-11·CVSS 4.8
CVE-2025-8836 [MEDIUM] CVE-2025-8836: A vulnerability was determined in JasPer up to 4
A vulnerability was determined in JasPer up to 4.2.5. Affected by this issue is the function jpc_floorlog2 of the file src/libjasper/jpc/jpc_enc.c of the component JPEG2000 Encoder. The manipulation leads to reachable assertion. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as 79185d32d7a444abae441935b20ae4676b3513d4. It is recommended to apply a patch to fix this issue.
GHSA
GHSA-hvcg-67f3-52cf: A vulnerability was determined in JasPer up to 4
ghsa_unreviewed·2025-08-11
CVE-2025-8836 [MEDIUM] CWE-617 GHSA-hvcg-67f3-52cf: A vulnerability was determined in JasPer up to 4
A vulnerability was determined in JasPer up to 4.2.5. Affected by this issue is the function jpc_floorlog2 of the file src/libjasper/jpc/jpc_enc.c of the component JPEG2000 Encoder. The manipulation leads to reachable assertion. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as 79185d32d7a444abae441935b20ae4676b3513d4. It is recommended to apply a patch to fix this issue.
Microsoft
JasPer JPEG2000 Encoder jpc_enc.c jpc_floorlog2 assertion
vendor_msrc·2025-08-12·CVSS 3.3
CVE-2025-8836 [MEDIUM] CWE-617 JasPer JPEG2000 Encoder jpc_enc.c jpc_floorlog2 assertion
JasPer JPEG2000 Encoder jpc_enc.c jpc_floorlog2 assertion
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
VulDB: VulDB
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://lea
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://drive.google.com/file/d/1pPgndhHh2z0lk99Wt31W-XIW3XWt8FB3/view?usp=drive_linkhttps://github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4https://github.com/jasper-software/jasper/issues/401https://vuldb.com/?ctiid.319370https://vuldb.com/?id.319370https://vuldb.com/?submit.622409https://github.com/jasper-software/jasper/issues/401
2025-08-11
Published