5.5

CVE-2024-49948: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-49948DEBIAN-CVE-2024-49948
Published 21-10-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2024-49948 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.3% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 51 · Related 48
DLA-4008-1DLA-4075-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: add more sanity checks to qdisc_pkt_len_init() One path takes care of SKB_GSO_DODGY, assuming skb->len is bigger than hdr_len. virtio_net_hdr_to_skb() does not fully dissect TCP headers, it only make sure it is at least 20 bytes. It is possible for an user to provide a malicious 'GSO' packet, total length of 80 bytes. - 20 bytes of IPv4 header - 60 bytes TCP header - a small gso_size like 8 virtio_net_hdr_to_skb() would declare this packet as a normal GSO packet, because it would see 40 bytes of payload, bigger than gso_size. We need to make detect this case to not underflow qdisc_skb_cb(skb)->pkt_len.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu134 products
  • linuxAll versions (No fix recorded) | < 4.4.0-267.301 | < 4.15.0-236.248 | < 5.4.0-208.228 | < 5.15.0-127.137 | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1142.148 | < 4.4.0-1180.195 | < 4.15.0-1179.192 | < 5.4.0-1140.150 | < 5.15.0-1073.79 | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < d7d1a28f5dd57b4d83def876f8d7b4403bd37df9 | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < 473426a1d53a68dd1e718e6cd00d57936993fa6c | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < 566a931a1436d0e0ad13708ea55479b95426213c | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < 2415f465730e48b6e38da1c7c097317bf5dd2d20 | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < 27a8fabc54d2f960d47bdfbebf2bdc6e8a92a4c4 | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < 9b0ee571d20a238a22722126abdfde61f1b2bdd0 | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < ff1c3cadcf405ab37dd91418a62a7acecf3bc5e2 | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < 1eebe602a8d8264a12e35e39d0645fa88dbbacdd | ≥ 1def9238d4aa2146924994aa4b7dc861f03b9362, < ab9a9a9e9647392a19e7a885b08000e89c86b535 | 3.9
  • linux_kernel≥ 3.9, < 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, < 6.6.55 | ≥ 6.7, < 6.10.14 | ≥ 6.11, < 6.11.3 | 6.12:rc1
Debian1 product
  • linux< 6.1.115-1 | < 6.11.4-1

3 vendors · 137 products

References

56 links
Show all 56 references