7.8

CVE-2024-57893: ALSA: seq: oss: Fix races at processing SysEx messages

Modified
AliasesUBUNTU-CVE-2024-57893DEBIAN-CVE-2024-57893
Published 15-01-2025Last modified 05-08-2026

Vulnerability summary

CVE-2024-57893 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 78 · Related 77
DLA-4076-1MGASA-2025-0030MGASA-2025-0032SUSE-SU-2025:0236-1SUSE-SU-2025:02387-1SUSE-SU-2025:02388-1

Timeline

  1. 15-01-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix races at processing SysEx messages OSS sequencer handles the SysEx messages split in 6 bytes packets, and ALSA sequencer OSS layer tries to combine those. It stores the data in the internal buffer and this access is racy as of now, which may lead to the out-of-bounds access. As a temporary band-aid fix, introduce a mutex for serializing the process of the SysEx message packets.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.18% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu136 products
  • linuxAll versions (No fix recorded) | < 6.8.0-60.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1029.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cff1de87ed14fc0f2332213d2367100e7ad0753a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d2392b79d8af3714ea8878b71c66dc49d3110f44 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9d382112b36382aa65aad765f189ebde9926c101 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0179488ca992d79908b8e26b9213f1554fc5bacc | 2.6.12
  • linux_kernel< 6.1.124 | ≥ 6.2, < 6.6.70 | ≥ 6.7, < 6.12.9 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3 | 6.13:rc4 | 6.13:rc5
Debian1 product
  • linux< 6.1.124-1 | < 6.12.9-1

3 vendors · 139 products

References

25 links
Show all 25 references