CVE-2022-49643: ima: Fix a potential integer overflow in ima_appraise_measurement
Vulnerability summary
CVE-2022-49643 is a high (CVSS 7.1) Integer Overflow or Wraparound vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.2% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 6Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ima: Fix a potential integer overflow in ima_appraise_measurement When the ima-modsig is enabled, the rc passed to evm_verifyxattr() may be negative, which may cause the integer overflow problem.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu107 products
- linux< 5.4.0-128.144 | < 5.15.0-50.56
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1086.93 | < 5.15.0-1021.25
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 39b07096364a42c516415d5f841069e885234e61, < 388f3df7c3c8b7f2a32b9ae0a9b2f9f6ad3b1b77 | ≥ 39b07096364a42c516415d5f841069e885234e61, < 831e190175f10652be93b08436cc7bf2e62e4bb6 | ≥ 39b07096364a42c516415d5f841069e885234e61, < c8d5d81940938b5f6c0f495ca9538e7740416f30 | ≥ 39b07096364a42c516415d5f841069e885234e61, < 640cea4c2839a821adfbb703b590a5928abe9286 | ≥ 39b07096364a42c516415d5f841069e885234e61, < d2ee2cfc4aa85ff6a2a3b198a3a524ec54e3d999 | 5.4
- linux_kernel≥ 5.4, < 5.4.207 | ≥ 5.5, < 5.10.132 | ≥ 5.11, < 5.15.56 | ≥ 5.16, < 5.18.13 | 5.19:rc1 | 5.19:rc2 | 5.19:rc3 | 5.19:rc4 | 5.19:rc5 | 5.19:rc6
Debian1 product
- linux< 5.18.14-1
3 vendors · 110 products
