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CVE-2018-15501

HIGHCVSS 7.5/10EPSS 4.34%

Last modified

CVE-2018-15501 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS.. EPSS estimates a 4.34% chance of exploitation in the next 30 days.

Description

In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
4.34%

90.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DebianDebian Linux8.0
DebianDebian Linux9.0
Libgit2Libgit2< 0.26.6
Libgit2Libgit2>= 0.27.0, < 0.27.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-15501?
In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS.
How severe is CVE-2018-15501?
CVE-2018-15501 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.34% probability of exploitation in the next 30 days.
How do I fix CVE-2018-15501?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST