Libgit2
CVE-2018-10887
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.
AnalysisAI
A flaw was found in libgit2 before version 0.27.3. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-194. A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service. Affected products include: Libgit2, Debian Debian Linux. Version information: version 0.27.3..
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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 craf
Buffer overflow in the git_pkt_parse_line function in transports/smart_pkt.c in the Git Smart Protocol support in libgit
An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. Rated critical severity (CVSS 9.8), this vulner
An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. Rated critical severity (CVSS 9.8), this vulner
The Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to cause a deni
A flaw was found in libgit2 before version 0.27.3. Rated medium severity (CVSS 6.5), this vulnerability is remotely expl
Incorrect returning of an error code in the index.c:read_entry() function leads to a double free in libgit2 before v0.26
Integer overflow in the index.c:read_entry() function while decompressing a compressed prefix length in libgit2 before v
The http_connect function in transports/http.c in libgit2 before 0.24.6 and 0.25.x before 0.25.1 might allow man-in-the-
libgit2 is a cross-platform, linkable library implementation of Git. Rated medium severity (CVSS 5.9), this vulnerabilit
The git_oid_nfmt function in commit.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (NUL
The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (
Same weakness CWE-194 – Unexpected Sign Extension
View allSame technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today