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advisory-db/crates/asn1_der/RUSTSEC-2019-0007.md
Tony Arcieri ac125ee29a Translate database into V3 advisory format (#420) 
As proposed in #240 and tracked in #414, this PR translates all
advisories into the new "V3" advisory format, which is based on Markdown
with leading TOML front matter.

This format makes it easier to see rendered Markdown syntax
descriptions, whether rendered by an IDE or GitHub. This should help
with both crafting advisories initially as well as review, and ideally
encourages more lengthy descriptions.

Support for this format shipped in `cargo-audit` v0.12.0 on
May 6th, 2020.
2020-10-01 18:29:11 -07:00

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[advisory]
id = "RUSTSEC-2019-0007"
package = "asn1_der"
aliases = ["CVE-2019-15549"]
date = "2019-06-13"
keywords = ["dos"]
url = "https://github.com/KizzyCode/asn1_der/issues/1"

[versions]
patched = [">= 0.6.2"]

Processing of maliciously crafted length fields causes memory allocation SIGABRTs

Affected versions of this crate tried to preallocate a vector for an arbitrary amount of bytes announced by the ASN.1-DER length field without further checks.

This allows an attacker to trigger a SIGABRT by creating length fields that announce more bytes than the allocator can provide.

The flaw was corrected by not preallocating memory.