CVE-2018-10887

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Summary

CVECVE-2018-10887
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-07-10 14:29:00 UTC
Updated2023-11-07 02:51:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-125 | CWE-190 | CWE-681

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Application Libgit2 Libgit2 All All All All
Application Libgit2 Libgit2 All All All All

References

ReferenceSourceLinkTags
Release libgit2 v0.27.3 · libgit2/libgit2 · GitHub CONFIRM github.com Patch, Release Notes, Third Party Advisory
[SECURITY] [DLA 2936-1] libgit2 security update MLIST lists.debian.org
[SECURITY] [DLA 1477-1] libgit2 security update MLIST lists.debian.org Mailing List, Third Party Advisory
delta: fix overflow when computing limit · libgit2/libgit2@c157711 · GitHub CONFIRM github.com Patch, Third Party Advisory
delta: fix sign-extension of big left-shift · libgit2/libgit2@3f46190 · GitHub CONFIRM github.com Patch, Third Party Advisory
1598021 – (CVE-2018-10887) CVE-2018-10887 libgit2: integer overflow leads to out-of-bounds read in git_delta_apply, allowing to read before base array CONFIRM bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 179136 Debian Security Update for libgit2 (DLA 2936-1)
  • 501036 Alpine Linux Security Update for libgit2
  • 501601 Alpine Linux Security Update for libgit2-1.0
  • 502110 Alpine Linux Security Update for libgit2-1.1
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