CVE-2024-50180: fbdev: sisfb: Fix strbuf array overflow
Vulnerability summary
CVE-2024-50180 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.1% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 45 · Related 45Timeline
- 08-11-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: sisfb: Fix strbuf array overflow The values of the variables xres and yres are placed in strbuf. These variables are obtained from strbuf1. The strbuf1 array contains digit characters and a space if the array contains non-digit characters. Then, when executing sprintf(strbuf, "%ux%ux8", xres, yres); more than 16 bytes will be written to strbuf. It is suggested to increase the size of the strbuf array to 24. Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.26% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not 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.
Ubuntu135 products
- linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-127.137 | < 6.8.0-56.58
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1073.79 | < 6.8.0-1025.27
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 433c84c8495008922534c5cafdae6ff970fb3241 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 57c4f4db0a194416da237fd09dad9527e00cb587 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 252f147b1826cbb30ae0304cf86b66d3bb12b743 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 41cf6f26abe4f491b694c54bd1aa2530369b7510 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 889304120ecb2ca30674d89cd4ef15990b6a571c | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 688872c4ea4a528cd6a057d545c83506b533ee1f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 11c0d49093b82f6c547fd419c41a982d26bdf5ef | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9cf14f5a2746c19455ce9cb44341b5527b5e19c3 | 2.6.12
- linux_kernel< 4.19.323 | ≥ 4.20, < 5.4.285 | ≥ 5.5, < 5.10.227 | ≥ 5.11, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.57 | ≥ 6.7, < 6.11.4
Debian1 product
- linux< 6.1.115-1 | < 6.11.4-1
3 vendors · 138 products